Final answer:
The three main brain regions involved in voluntary movement are the Motor cortex, Basal ganglia, and Cerebellum, responsible for planning, coordination, and execution of movements respectively.
Step-by-step explanation:
The three main regions of the brain involved in voluntary movement are the Motor cortex, Basal ganglia, and Cerebellum. These areas of the brain are critical for planning, coordinating, and executing movements. The Motor cortex, located in the frontal lobe, is primarily responsible for generating neural impulses that control the execution of movement. The Basal ganglia, a group of nuclei situated at the base of the forebrain, play a significant role in motor control, and the Cerebellum, located at the back of the brain, assists in coordination, precision, and timing of movements. In this context, the correct answer to the question is option 3) Motor cortex, Basal ganglia, Cerebellum.