Guy was in a serious car accident and experienced a severe traumatic brain injury. He is now in a long-term care facility, where he is often deeply asleep but at other times seems somewhat awake. However, he does not respond to his family or caregivers in any way, not even to smile at them or follow them with his eyes. He also does not engage in purposeful behavior. For example, if his hair falls in his eyes during one of his more awake periods, he makes no attempt to brush it away. What term best describes Guy's state?Explain the term in details