In Response to a Muscle Being Stretched,a Muscle Spindle Initiates

Multiple Choice

In response to a muscle being stretched,a muscle spindle initiates a somatic spinal reflex that causes
1) contraction of the agonist muscle.
2) relaxation of the antagonist muscle.
3) contraction of the antagonist muscle.
4) relaxation of the agonist muscle.

A) 1 only
B) 2 only
C) 3 only
D) 4 only
E) 1 and 2