The second largest part of the brain, which coordinates voluntary movements and maintains the balance of the body, is which structure?

1. The clues are 'second largest', coordination of movement and body balance. 2. The cerebrum is the largest part and handles thinking, ruling out option A. 3. The thalamus is a relay centre and medulla controls vital reflexes, ruling out options C and D. 4. The balance-and-coordination centre is the cerebellum, option B. _Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 15 Nervous System "Cerebellum", p.230_