In the 19th century, john d. rockefeller was most associated with the company named a) u. s. steel. b) standard oil. c) general motors corporation. d) american telephone and telegraph.

The answer is:

B) Standard Oil.

John D. Rockefeller, who is considered the wealthiest american of all time, was a bussines man that founded the Standar Oil Company in 1870, he mainly did refining of oils and at his peak he would ocntrol 90% of all oil trading in the United States, he stoped running the company in 1897, by the time the Standard Oil company was dismantled by the government due to anti-trust actions, breaking the federal law, the Net worth of Rockefeller amounted to 2% of the National Economy.

c) they were beaten and fired from their jobs.

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.