Bluefin tuna travel in schools throughout the world's oceans. Fishing boats from many nations harvest bluefin tuna as the schools migrate through their national waters. The schools of bluefin tuna are BEST described as a (n):

A) a private good.

B) a public good.

C) an artificially scarce resource.

D) a common resource.

Answer: (D) A common resource

Explanation:

A common resource is one of the type of ordinary resource that consist of various types of human resources in the system.

Common resources basically provide the various types of tangible and the concrete benefits to the users.

According to the question, bluefin tuna best describe about the common resource due to the migration to their national water.

Therefore, Option (C) is correct.