A Readiness Potential Is A(n)

A readiness potential is a(n)

A) localized electrical potential within the primary motor cortex that corresponds precisely to the intended movement.
B) broad wave of electrical activity in the cerebral cortex that precedes a voluntary movement.
C) graded depolarization of spinal motor neurons that makes it easier for them to reach threshold in response to sensory input.
D) electrical potential generated in the cerebellum in preparation for a voluntary movement.