The most extensive regions of the brain are involved in higher mental functions such as memory and reasoning.These regions are called the

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The association areas are the regions of the brain involved in higher mental functions such as memory and reasoning. The somatosensory cortex is involved in processing sensory information from the body, the hippocampus is involved in memory formation, and the corpus callosum is responsible for communication between the two hemispheres of the brain. Therefore, D is the most appropriate choice.

The Most Extensive Regions of the Brain Are Involved in Higher