Which phrase best completes this diagram?

a. created two houses of congress, one representing states equally and the other representing states based on population

b. required great compromises that eventually led to the civil war

c. was proposed by delegates from a medium-sized state, pennsylvania

d. allowed all states to elect an equal number of members of congress to represent their interests

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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d. william mckinley's southern upbringing him win.