How did the outcome of the mexican-american war affect trade in the united states? a. it made trade with asian countries easier. b. it provided a trade route between the united states and canada. c. it prohibited trade between the united states and south america. d. it had very little impact on trade, since the area gained was mountainous.

b. major john c. frémont led a rebellion called the bear flag revolt.

explanation:

during the bear flag revolt, from june to july 1846, a small group of american settlers in california rebelled against the mexican government and proclaimed california an independent republic. the republic was short-lived because soon after the bear flag was raised, the u.s. military began occupying california, which went on to join the union in 1850. the bear flag became the official state flag in 1911.