René Descartes would be most comfortable with which of the following statements?

René Descartes would be most comfortable with which of the following statements?
A ) The universe is a mental construction.
B ) The body is a hallucination generated by the mind.
C ) The body is made of matter; the mind is not.
D ) Everything is made of matter and energy.
E ) Reflexes are noted in humans, but not in animals.