When Dr Wilder Penfield Used Electrical Stimulation on a Certain Region

When Dr. Wilder Penfield used electrical stimulation on a certain region of a patient's brain, he noticed that the patient raised his arm uncontrollably. From this experiment, Penfield learned that the motor program of the __________________ has the capability to override the signals sent from other systems and explains why you might feel helpless to control certain impulses that are overridden by another source of power.

A) prefrontal lobe
B) motor cortex
C) occipital lobe
D) primary somatic sensory cortex
E) premotor area