Which of the following was a challenge faced by farmers in the late 1800s? A. They were being paid less for their cash crops.

B. They were charged more for land.

C. There were few advances in farming equipment.

D. There was less land available for them to farm.

A. They were being paid less for their cash crops.

donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

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i googled "who was kolson johanson" and this is the answer i found.

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the name of the theory is landmass theory.