The United States' main interest in Southwest Asia is oil. Which reason below BEST explains why? A. The United States' main export is petroleum-based products.
B. Gas prices are too high.
C. The demand for oil increased as the amount of cars and factories increased.
O D. The United States wanted to compete with OPEC.

A. The United States' main export is petroleum-based products.

Explanation:

The United States is interested in Southwest Asia for oil that can help the United States economically. Petroleum or oil is found in the largest quantity in the Persian Gulf.

The United States' main export is petroleum-based products. The United States consumes petroleum to produce distillate that is further used to create diesel fuel. Other non-fuel products in which oil is used include clothes, toys, luggage, phones, soap, and cosmetics etcetera.

Petroleum-based products are the fastest growing areas of US exports.

Hence, the correct answer is "A. The United States' main export is petroleum-based products."

d) a constitutional amendment