Final Answer:
When people are in a vegetative state and the brainstem remains intact they are responsive to external stimuli.
Therefore, correct answer is D) They are responsive to external stimuli.
Step-by-step explanation:
When people are in a vegetative state, and the brainstem remains intact, they can exhibit some degree of responsiveness to external stimuli. This means that although they may not display signs of consciousness or awareness in the conventional sense, they can react to certain stimuli such as sound, light, or touch. This responsiveness is often reflexive rather than indicative of conscious awareness, as the higher brain functions associated with consciousness may be impaired.
Understanding the nuances of consciousness and responsiveness in individuals in a vegetative state involves delving into the complex interactions within the brain. Ongoing research in neurology and neuroscience contributes to our evolving comprehension of states of consciousness and the potential for responsiveness in such conditions.
Therefore, correct answer is D) They are responsive to external stimuli.