All of the following were true of both mining and cattle ranching expansion westward, except
a. most people who got involved early struck it rich.
c. loneliness was a common hardship.
b. towns developed around these areas.
d. improvements in railroads contributed directly to the growth of these industries.

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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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