Is a notably elongated country with a long coastline provides it with easy to access marine resources.

a. vietnam

b. cambodia

c. laos

d. burma

A. Vietnam

Explanation:

Vietnam is an elongated country which has a long coast line. Vietnam enjoys all the benefits of being a coastal country.

1.The country has an easy access to coastal resources.

2.Coast line enables easy export to and from the country.

3.Also, the natural resources like tin are found in Vietnam.

These factors have made the country a marine economy.

Ship building is one of the major industries in Vietnam. Exports of resources like tin makes full use of the coastal region.  

i'm sure the answer you are looking for would be

a. an ice age

hope this contact me if this didn't or you need with more answers : )