Which of the following is considered to be the 'command and control system' of the human body?

The brain is the central organ of the nervous system and is responsible for controlling most bodily functions, interpreting sensory information, processing thoughts, emotions, and memories, and controlling voluntary and involuntary movements.

The liver plays a crucial role in metabolism, detoxification, and synthesis of essential proteins. 

The stomach is primarily involved in digestion by breaking down food with acids and enzymes. 

The heart is responsible for pumping blood throughout the body, delivering oxygen and nutrients to cells and removing waste products.