The idea of the geocentric model of the solar system that was most contested by some philosophers was The motion of the planets was uniform and circular.
Many scientists believed that the earth was flat and this was a widely accepted belief and notion that was held, until it was proven that the earth was indeed flat.
Despite this, many scientists and philosophers held on to the previous belief that the earth was flat, which caused a lot of debate and contentions
Therefore, the correct answer is option C
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