In Descartes's Theory of the Reflex Mechanism,stimuli Are Transmitted to the Brain

In Descartes's theory of the reflex mechanism,stimuli are transmitted to the brain by means of __________,and responses are initiated by __________.

A) columns of "light" particles; the dispersion of heat to the proper muscle
B) hydraulic pressure in a sensory nerve; hydraulic pressure in a motor nerve
C) tugs and pulls on filaments through nerves; the flow of animal spirits through the nerves and into the muscles
D) hydraulic pressure in the fluid within the nerve; tugs on the filaments within the nerves, connected to the muscles