Lucy is walked erect on two feet describes the bipedal of the hominin character, hence option d is correct.
Who is lucy?She belonged to the genus species Australopithecus afarensis and was a hominid since she could walk on two legs.
The Australopithecus afarensis fragmentary skeleton, known as "Lucy," was found in the Afar desert of Ethiopia in 1974 by a group of international researchers led by Dr. Donald Johanson, a former museum curator.
This small-bodied, small-brained hominin discovery demonstrated that our ancestors first humans frequently stood on two legs, Lucy’s genus, Australopithecus.
Therefore hominin character Lucy genus evolved, hence option d is correct.
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