Q. Which of the following countries do not share border with the Caspian Sea?

[A] Armenia

[B] Azerbaijan

[C] Kazakhstan

[D] Turkmenistan

Answer: A

Statement a is incorrect: Armenia is a landlocked country. 

Caspian Sea is bordered in the northeast by Kazakhstan, in the southeast by Turkmenistan, in the south by Iran in the southwest by Azerbaijan, and in the northwest by Russia. 

Source: India Kazakhstan relations