Explanation: Production were much more organized during the late 19th century and on a larger scale because of factories. (B) doesn't make sense because wage level were not going up, (C) is wrong because it said "only" to foreign markets, and lastly (D) is wrong because government had less involvement in business (laissez-faire).
Yes, it is true that historians believe that the time from prehistory to the development of agriculture spans more than two million years, since it is thought that humans first appeared on Earth roughly six millions years ago.
