What was important about donald johansons discovery of lucy in 1974?A. It proved that hominids used tools. B it proves that hominids lived in east Africa 5,000 years ago. C It pointed to a hominids ability to walk upright. D It was the first discovery of ancient bones.

It pointed to a hominids ability to walk upright.D

Explanation:

Donald C. Johanson is a known Paleoanthropologist that made remarkable discoveries that shook up our family tree. In 1974, he discovered a skeleton of a woman in Ethiopia and it was said that the skeleton has been around as fossil since 3.2 million years.

The female remains was later named Lucy and she showed us that upright walking and bipedalism gave way to all other changes we consider to be human, which also includes tool-making.  

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yup! you are correct it is b.