The answer is D) doubt. I know this because when you use context clues this the most understandable.
Answer: It is (C) In an introductory paragraph of an essay
Explanation: Hope this helps!
The answer here is D.
It uses a similie to make a comparison.
Answer:
The water must be heated.
Anything bigger than 5 you round up, anything lower than 5 you round down. the number you determine this by is the number behind the decimal. using your number 25.691 which means you would round up the 6 and have the number 26.000 as the final answer. if it was for say 25.400 your number would end up being 24.000.