Question

which answer was not a cause for the mexican-american war between the united states and mexico?
a united states annexation of texas
b desire for westward expansion
c dispute over texas-mexico territory
d jeffersons desire to double the size of the nation

Explanation:

The Mexican - American War (1846 - 1848) had causes related to U.S. annexation of Texas (A), westward expansion (B), and the Texas - Mexico territory dispute (C). Jefferson's desire to double the nation's size was related to the Louisiana Purchase (early 1800s), not the Mexican - American War. So option D is not a cause.

Answer:

D. Jefferson's desire to double the size of the nation