In Response to a Muscle Being Overstretched, a Muscle Spindle

Multiple Choice

In response to a muscle being overstretched, a muscle spindle generates a somatic spinal reflex that, ultimately, causes what response?

A) contraction of the agonist muscle
B) relaxation of the antagonist muscle
C) contraction of the antagonist muscle
D) relaxation of the agonist muscle
E) both contraction of the agonist muscle and relaxation of the antagonist muscle