Answer
b.
Work Step by Step
Option a. is incorrect. The medulla oblongata regulates autonomic functions such as breathing and digestion.
Option c. is incorrect. The cerebellum coordinates motor activities.
Option d. is incorrect. The brain stem is part of the autonomic nervous system and consists of the medulla oblongata, the midbrain, and the pons.
Option b. is correct. The cerebrum controls voluntary behavior.