The lateral tract of the spinal cord controls __________. The medial tract controls ________.

a. peripheral movements on the contralateral side

(relative to the side of the brain where the tract originated) . . . trunk movements bilaterally

b. peripheral movements on the ipsilateral side . . .

trunk movements bilaterally

c. trunk movements bilaterally . . . peripheral movements on the contralateral side

d. trunk movements bilaterally . . . peripheral movements on the ipsilateral side