Bill of lading:
- A bill of lading is a document issued by a carrier (such as a shipping line or airline) to acknowledge receipt of goods for shipment.
- It serves as evidence of the contract of carriage, receipt of the goods, and title to the goods.
- The bill of lading contains information such as the names of the shipper and consignee, the description and quantity of goods, the vessel or flight details, and the terms and conditions of the contract of carriage.
- It is commonly used in international trade and is often required by banks for financing purposes.
- The bill of lading can be negotiable or non-negotiable. A negotiable bill of lading allows the goods to be transferred to a third party by endorsement and delivery of the original document, while a non-negotiable bill of lading does not allow for such transfer.

Dock warrant:
- A dock warrant is a document issued by a warehouse operator or dock authority to acknowledge the receipt of goods for storage.
- It is used when goods are stored in a bonded warehouse or a public warehouse.
- The dock warrant serves as proof of ownership or title to the goods and can be used to transfer the goods to another party.
- It contains information such as the name of the warehouse operator, the description and quantity of goods, and the terms and conditions of storage.

Railway receipt:
- A railway receipt is a document issued by a railway company to acknowledge the receipt of goods for transport by rail.
- It serves as evidence of the contract of carriage, receipt of the goods, and title to the goods.
- The railway receipt contains information such as the names of the consignor and consignee, the description and quantity of goods, the train details, and the terms and conditions of the contract of carriage.
- It is commonly used for domestic transportation of goods by rail.

All the above:
- The correct answer is option 'D' because all three documents, i.e., bill of lading, dock warrant, and railway receipt, serve as documents of title of goods.
- They are issued by different carriers or warehouse operators to acknowledge the receipt of goods, provide evidence of ownership or title, and facilitate the transfer or transport of goods.
- These documents are essential in trade and commerce as they establish the rights and obligations of the parties involved in the transportation or storage of goods.

A document of title of goods:
There are several documents that serve as titles of goods. These documents provide evidence of ownership and are used in various transportation and trade transactions. The options provided are:
1. Bill of lading:
- A bill of lading is a document issued by a carrier (such as a shipping company) to acknowledge the receipt of goods and to provide details of the shipment.
- It serves as evidence of the contract of carriage, receipt of goods, and title to the goods.
- It is commonly used in maritime transport but can also be used for other modes of transportation.
2. Dock warrant:
- A dock warrant is a document issued by a warehouse operator to acknowledge the receipt of goods into a warehouse.
- It serves as evidence of the ownership or control of the goods stored in the warehouse.
- It is commonly used in warehousing and storage operations.
3. Railway receipt:
- A railway receipt is a document issued by a railway company to acknowledge the receipt of goods for transportation by rail.
- It serves as evidence of the contract of carriage, receipt of goods, and title to the goods.
- It is specifically used for goods transported by rail.
4. All the above:
- This option includes all the documents mentioned above, namely bill of lading, dock warrant, and railway receipt.
- It implies that any of these documents can serve as a title of goods.
Answer: d. All the above