Which president spoke out against communism, but worked closely with mikhail gorbachev to reduce tensions between the u. s. and the u. s.s. r.?
a. george h. w. bush
b. jimmy carter
c. gerald ford
d. ronald reagan

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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