What part of the brain is encompassed by the cerebrum?

The cerebrum is the largest part of the brain and is responsible for various higher brain functions, including thought, memory, reasoning, sensory processing, and voluntary motor actions. When considering which part of the brain is encompassed by the cerebrum, the most appropriate choice is that it makes up the major portion of the brain. This encompasses the various lobes within it, including the frontal, parietal, temporal, and occipital lobes, which collectively serve as a significant area for cognitive functions and sensory integration.

The other choices represent specific structures or areas that may be associated with but are not included in the general description of what the cerebrum represents as a whole. For instance, the frontal lobe is part of the cerebrum but is only a segment of this major portion. The cerebellum, while being another critical brain structure responsible for coordination and balance, is distinct from the cerebrum. The corpus callosum, which connects the two hemispheres of the cerebrum, is also an integral part of the cerebrum but does not encompass it. Hence, identifying the cerebrum as the major portion of the brain accurately reflects its role and size in the overall structure of the central nervous