By enlisting in the army, new mexicans hoped to prove a. their loyalty to the united states. b. their status as a territory. c. that cowboys are better fighters than new yorkers. d. that a proper war needs horses.

a. Their loyalty to the United States.

Explanation:

The United States´ war against Spain in 1898 was meant to help Cuba get independence from Spanish rule. However, since Spain was News Mexico´s primary mother country, the war became also a test of their commitment to the US, and new Mexicans certainly showed very strong loyalty.  

When the governor called for volunteers to fight, more new Mexicans showed up than there were positions for in the army.  

a nationwide discount program is implemented.

explanation: