Which description best matches the cerebrum's primary role?

• A. Coordination and balance
• B. Hormone control
• C. Thinking and memory
• D. Sleep regulation

Answer: (C)

The main idea being tested is the cerebrum’s role in higher mental functions. The cerebrum, especially its cortex, is where conscious thought happens—reasoning, planning, problem-solving, language, and memory formation and retrieval. These cognitive processes define what the cerebrum does best, so describing it as involved in thinking and memory is the most accurate match.

Other brain parts handle different tasks: coordination and balance come from the cerebellum, hormone control from the hypothalamus and related endocrine structures, and sleep regulation involves several areas including the hypothalamus and brainstem. Those roles are important, but they aren’t the primary function of the cerebrum.