**Marine Insurance:**

Marine insurance is a type of insurance that provides coverage for risks associated with marine activities. It protects the interests of individuals or businesses engaged in the transportation of goods, cargo, or passengers by sea, as well as the owners of marine vessels. Marine insurance covers various aspects related to maritime risks, ensuring financial protection against any loss or damage that may occur during transit.

**Covered under Marine Insurance:**

Among the options provided, the coverage provided by marine insurance can be categorized as follows:

**a) Whole Life Policy:**
Whole life insurance policies are not covered under marine insurance. Marine insurance specifically focuses on providing coverage for risks associated with marine activities and transportation. Whole life insurance, on the other hand, is a type of life insurance policy that provides coverage for the entire lifetime of the insured individual. It does not involve any maritime risks, making it outside the scope of marine insurance.

**b) Liability Insurance:**
Liability insurance can be covered under marine insurance. Marine liability insurance provides coverage for legal liabilities arising from the operation of a vessel or maritime activities. It protects the policyholder against claims for bodily injury, property damage, or pollution caused by the insured vessel. This type of coverage is essential for shipowners, charterers, and operators to mitigate potential financial losses resulting from accidents or incidents involving their vessels.

**c) Endowment Policy:**
Endowment policies are not covered under marine insurance. Endowment policies are life insurance policies that provide a combination of insurance coverage and savings or investment components. They do not relate to maritime risks and are not designed to provide coverage for losses or damages occurring during marine transportation. Therefore, they fall outside the scope of marine insurance.

**d) Act Only:**
The term "Act Only" is unclear in the context of marine insurance. However, if it refers to insurance coverage mandated by specific acts or regulations related to maritime activities, then it might be covered under marine insurance. Various laws and regulations require certain types of marine insurance coverage, such as hull and machinery insurance, protection and indemnity insurance, or cargo insurance. These types of coverage are essential for complying with legal requirements and protecting the interests of individuals or businesses involved in marine activities.

D. act only is the answer