D. If you give someone a vaccine while they are sick the body might not be able to handle both "infections"
The answer is Over-the counter.
Over-the-counter are medications sold without prescription. They got their name they are passed over the counter from the pharmacist to the patient. However, they, together with prescription and illegal drugs, are able to change the central nervous system.
The answer is most likely B because the cerebellum is the biggest part of the brain :)
