Question

the _ model was first summarized by aristotle and plato in the 4th century bc and later updated by ptolemy, a greek philosopher, about 100 - 200 ad. in the model the earth is motionless at the center of universe. a geocentric b gravocentric c heliocentric d solarcentric

Explanation:

The geocentric model posits Earth at the universe's center. It was summarized by Aristotle and Plato in the 4th - century BC and updated by Ptolemy. The heliocentric and solarcentric models have the Sun at the center, and "gravocentric" is not a common astronomical model term in this context.

Answer:

A. geocentric