Dejection in this context means disappointment.
Explanation:
According to the excerpt, the injured captain was in profound dejection meaning that he was severely disappointed and was in a gloomy mood with a hurt, rejected and downcast attitude. The captain was not in good spirits much and was totally crestfallen and wistful.
There are times when feelings of hopelessness and sadness come along with indifference and melancholy. A sense of incapability and misery loom in making the person feel depressed and upset. This is the feeling of dejection that the captain feels in this excerpt.
Answer: The answer is D. Low Spirits.
Explanation: Dejection-"a sad and depressed state; low spirits."