How was rockefeller able to build his monopoly across the oil industry

Buying rival refineries

Explanation: American industrialist John D. Rockefeller was born July 8, 1839, in Richford, New York. He built his first oil refinery near Cleveland and in 1870 incorporated the Standard Oil Company. By 1882 he had a near-monopoly of the oil business in the U.S., but his business practices led to the passing of antitrust laws.

Standard Oil gained a monopoly in the oil industry by buying rival refineries and developing companies for distributing and marketing its products around the globe.

bibliography and citations to credit the sources hope this you if not my deepest of apologize ^w^

the answer is c sharecroppers were trapped in a cycle of poverty and debt.

explanation:

one of the major disadvantages of sharecropping system is that the sharecroppers or the planters are stucked in an unhealthy cycle of debts. this happens because planters will be allowed to loan merchandise from the land-owner and will soon be paid by the farmer in his share in the farm come harvest time. hope this !

by kd