Severing Sensory Fibers from a Monkey's Arm Will Cause the Monkey

Severing sensory fibers from a monkey's arm will cause the monkey to stop using that arm, but it will begin to use it again if the other (good) arm is restrained. This demonstrates that

A) primates will use a damaged limb if they have no alternative.
B) over time the cortex can train the limbs to respond.
C) proprioceptive information can be supplemented with feedback from other senses.
D) the sensory pathways are malleable after injury.