The correct answer is Option (D). 

1. Events - (b). Are the end result of the transaction.
Events refer to the outcomes or end results that occur as a result of a business's transactions. For example, when a business purchases inventory, the event is the acquisition of goods that will be used in the business's operations. The end result of this transaction is the increase in the inventory account.

2. Government and their agencies - (d). Are one of the external users of the financial statements.
Governments and their agencies, such as tax authorities and regulatory bodies, are external users of financial statements because they need to assess the financial health and compliance of a business. They rely on financial statements to ensure that the business is following laws and regulations, paying taxes correctly, and operating in a transparent manner.

3. Management of the business enterprise - (a). Are the Internal users of financial statements.
Management of a business enterprise is considered an internal user of financial statements because they use the information to make decisions about the business's operations, strategy, and performance. They need to analyze financial data to assess the company's financial health, allocate resources efficiently, and evaluate the effectiveness of their strategies and decisions.

4. Purchase of goods worth Rs. 1,000 - (c). Is a transaction.
A transaction refers to an economic event that involves the exchange of goods or services between two parties. In this case, the purchase of goods worth Rs. 1,000 is a transaction because it involves the exchange of goods (inventory) for money (payment). This transaction will be recorded in the company's financial records, affecting its assets and liabilities.