Final answer:
The correct answer is (c) Forebrain, which is the largest part of the brain and includes the cerebral cortex along with other subcortical structures, such as the thalamus, hypothalamus, and limbic system.
Step-by-step explanation:
The largest part of the brain, which includes the hypothalamus, thalamus, cerebrum, and limbic system structures, is the forebrain. The forebrain contains the cerebral cortex, which is associated with higher-level processes such as consciousness, thought, emotion, reasoning, language, and memory. Along with the cerebral cortex, the forebrain also encompasses subcortical structures including the thalamus, which acts as a sensory relay center; the hypothalamus, which coordinates homeostatic functions; and the limbic system, which handles emotional responses and memory. Among the given options, (a) Midbrain, (b) Hindbrain, (c) Forebrain, and (d) Cerebellum, the correct answer is (c) Forebrain.