The correct option is: C) Nociceptors
Explanation:
Nociceptors, also known as the pain receptor, is a type of sensory receptor, developed from the neural-crest stem cells that causes the perception of pain and responds to the harmful stimuli by sending signals to the spinal cord and brain.
They are of two types internal and external. Internal nociceptors are found in organs like bladder, guts, digestive tract, joints and muscles. Whereas, the external nociceptors are present on the skin, corneas and mucosa.
answer: the two that you did do are correct and the last one is cerebrum.
explanation:
the last one is cerebrum because that is the only answer that is not marked out with a pencil.