In Monkeys Trained to Maintain One-Finger Contact with a Moving

In monkeys trained to maintain one-finger contact with a moving object to obtain a food reward, which change was found in the cortical representations of the fingers?

A) Cortical areas related to the trained finger would become more intensely concentrated in narrower zones.
B) Cortical areas associated with the trained finger would become evident in the visual cortex.
C) Cortical areas associated with the trained finger would expand.
D) Cortical areas associated with the untrained fingers would expand.