Which statement best explains why zhou power over china declined after several centuries merchants developed greater wealth than zhou empires by adopting a money system technological innovation lead to more craftsmanship reducing the need for the zhou to trade under the zhou federal lord commanded much local loyalty zhou rulers depended on the work of peasants to produce food for the empire

The right option is the third one, but it's not perfect. The Zhou dinasty began to decline after losing a civil war in 771 BC, and though it lasted for 500 more years their reign was always threatened by powerful vassals, the federal lords as the third option says, but they had grown strong by conquering land from Zhou's rivals and not by being exceptionally respected.

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.