I can't decide rather it's C. or D. :
The author lets you know what type of person Mr. Grimby is by the use of the phrases such as "suited to the night and crept around." This leads to you to feel Mr. Grimby is:
A. Helpful
B. Trustworthy
C. Evil
D. A sleepwalker
The implication is that Mr. Grimby is evil.
Your confusion probably results from not understanding the phrase "suited to." In this case, "suited to the night" means "benefits from the night."
Compare this to people (like house painters, dressmakers and jewelers) who benefit from working in daylight or in lighted places.
Who benefits from the night? Someone who who wants to do evil and doesn't want to get caught benefits from the night.
Why is "sleepwalker" the wrong answer? A sleepwalker doesn't benefit from sleepwalking, so he doesn't really benefit from the night either. The night just coincidentally happens to be when he sleeps, but the night is not a benefit to the sleepwalker, unless his GOAL is to sleepwalk.
Sleepwalking is an unconscious activity of which the sleepwalker is unaware, so the sleepwalker can't be said to be benefiting from a circumstance (night) that he doesn't even know is occurring and that doesn't help him to accomplish anything or achieve a goal.
Evil people benefit from and are "suited to" the night, because evil people and their evil deeds are less likely to be observed and discovered in the darkness of the night. They consciously wait for the night, just like animals hunt at night, because that's when they are least likely to be detected and when their secret, unannounced intentions are least likely to be frustrated.
To determine the correct answer between options C and D, we need to analyze the information provided in the question. The author describes Mr. Grimby as a person who is "suited to the night and crept around."
Option C suggests that Mr. Grimby is evil, whereas option D suggests that he is a sleepwalker. To determine which option is the most appropriate, we need to look for clues in the given information.
The phrase "suited to the night and crept around" implies that Mr. Grimby has a secretive and stealthy nature. This information does not directly imply whether he is evil or a sleepwalker. Therefore, to make a definitive decision, we should consider other context or information that might support one of the options more strongly.
If the text mentions any harmful actions or morally questionable behavior conducted by Mr. Grimby, this would support option C, suggesting that he is evil. On the other hand, if there are references to Mr. Grimby engaging in activities consistent with sleepwalking, option D would be more applicable.
Without any additional information, it is difficult to determine the correct answer. Therefore, it is necessary to consult the original source material, such as a book or article, to gain a better understanding of Mr. Grimby's character and make an accurate choice between option C and option D.