Question

Why is the Gulf Coast important to Mexico's economy?

It is the agricultural center of Mexico.
It is the heart of the nation.
It is the location of most of Mexico's industries.
It is the source of the nation's petroleum deposits.

Answer 1

It is the fourth one, It is the source of nation's petroleum deposits...

I had this question on a lesson.

Answer 2

It is the source of the nation's petroleum deposits.