Which reason best explains why the United States and Mexico have a strong trade relationship?

A.

The two countries share the same type of government.

B.

The two countries share the same colonial history.

C.

The two countries both produce oil, making it easy to manufacture goods.

D.

The two countries share a border, making it easy to transport goods.

D. The two countries share a border, making it easy to transport goods.

Explanation:

The presence of the long border between these countries emphasis peace and security in form of the international trade. As Mexico is the biggest trading partner of the unites states its die to the fact they are demographically connected with one another and almost about three-quarters of trade have been between them, sharing similarities.