The correct option is B Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion
Cerebellum is a structure that is present in the hindbrain. It is situated towards the posterior part of the pons. The information obtained from the semicircular canals of
the ear and the auditory system are integrated by the cerebellum of the brain. It performs various functions including maintenance of motor coordination, precision and timing. It also plays an important role in maintaining the equilibrium, posture and motor learning in human beings. Hence, it contributes to the skillful voluntary movement as well as involuntary activities like maintaining the body balance, equilibrium etc.
Hence, both the assertion and reason are true but the reason is not the correct explanation of the assertion since, one statement describes the function of cerebellum, whereas, the other describes the location of it.