The correct answer is (d). The brain is responsible for all of the above three.
The brain is the control center of the body. It is responsible for all voluntary and involuntary actions, including thinking, regulating the heartbeat, and balancing the body.
The brain is made up of billions of nerve cells called neurons. Neurons communicate with each other using electrical and chemical signals. These signals control all of the body’s functions, from the beating of the heart to the movement of the muscles.
The brain is divided into three main parts: the cerebrum, the cerebellum, and the brainstem. The cerebrum is the largest part of the brain. It is responsible for higher functions such as thinking, planning, and decision-making. The cerebellum is responsible for coordination and balance. The brainstem is responsible for basic functions such as breathing and heart rate.
The brain is a complex and amazing organ. It is responsible for all of the body’s functions and is essential for life.