What do you mean by that?
if you could explain more clearly i'd be glad to help you out
Answer:
top three is a c a most of them are c
Explanation:
Meaning of experiment is A-controlled observation.
Part A: D
Part B: A
The correct answer would be letter B. No revision is necessary. There is no revision needed in the sentence because the rules in using quotation marks and other punctuation marks are applied and they were placed correctly in the given sentence.
