The correct option is B Response to stimuli
Living things respond to changes around them. Therefore Shreya pulled her hand away when she touched a hot kettle in response to touch. Response to stimuli is one main characteristic of all living things including plants. For example, the touch-me-not plant (Mimosa pudica). The leaves of this plant close or droop in response to touch. In humans and higher mammals, there is a separate nervous system which helps to sense stimulus and send signals to the brain to respond in the appropriate way to that stimulus.