Mexico’s most important natural resource is
a. gold.
b. petroleum.
c. coffee.
d. corn.

hello,

question- above

answer- your correct answer is actually college a. because college a has a good price loan and graduation rate. you have to compare it with other values also , that how many students graduated and how many from them have repaid the loan ( default loan rate ).

important- if my answer did mark me as brainliest you and have the best day ever!

answer; collective security;