Which one of the following refers to a state of unresponsiveness from which arousal occurs only with vigorous and repeated stimulation?

Stupor is characterized by a state of unresponsiveness where an individual can be aroused only with vigorous and repeated stimulation. This means that the person is in a significantly reduced level of consciousness, often not responding to their environment or stimuli unless a strong external force is applied. This condition represents a more severe alteration of consciousness compared to lethargy, where individuals may still respond to stimuli but do so with decreased activity or alertness. In contrast, coma describes a deeper state of unresponsiveness where no amount of stimulation can elicit a response. Therefore, stupor specifically denotes the ability to be temporarily awakened from a largely unresponsive state through considerable efforts, making it the most accurate choice in this context.