The answer to this question would be phantom pain
An amputated leg sometimes still giving a fell of leg or pain even though the leg wasn't there anymore. That happened because the nerve fiber that carries the stimulus from that area is still alive. Something might induce the remnant of the nerve to send a signal of pain but the brain interprets the location to be in the removed limb.
B. Is the correct answer.
Answer:
AMINO ACID, LIDID, CARBOHYDRATE