What Experimental Evidence Indicates That the Decision to Perform a Voluntary

What experimental evidence indicates that the decision to perform a voluntary movement originates in the association cortex?

A) A localized electrical potential in the association cortex is the first electrical signal recorded prior to a motion.
B) Diffuse readiness potentials can be recorded over most of the cortical surface prior to the localized potentials that precede movement.
C) Lesions of specific locations in the association cortex correspond to deficits in movement of corresponding body parts.
D) Animals with superior motor coordination have significantly larger association cortices than other animals.