By 1877 john d. rockefeller controlled 90 percent of oil refineries in the united states because of a. government subsidies. c. from the railroads. b. the purchase of competitors companies during poor economic times. d. the financial assistance from his father.

answer: born in saint-dié, in the vosges department, france, he studied law, and was called to the bar at paris in 1854,[2] but soon went into politics, contributing to various newspapers, particularly to le temps. he attacked the second french empire with great violence, directing his opposition especially against baron haussmann, prefect of the seine department. a series of his articles in le temps was later republished as the fantastic tales of haussmannlaxupa (1868).[2]

explanation:

6 units. ab and lo are congruent sides, and if ab= 6 units, then lo would be the same.