ANATOMY

Detailed explanation-1: -The correct option is A Reflex action. An involuntary response to a stimulus is known as reflex action. Reflex actions occur when our body needs to react to immediate danger such as accidentally tough a hot object.

Detailed explanation-2: -Reflex actions A reflex action is an automatic (involuntary) and rapid response to a stimulus, which minimises any damage to the body from potentially harmful conditions, such as touching something hot.

Detailed explanation-3: -A reflex is an involuntary response to a stimulus. Every reflex begins with a stimulus, or a change in the environment. Take for example the corneal, or blinking, reflex. The stimulus in this reflex action is an irritation or touch to the surface of the eye.