In fact, (5) between 12 and 18 cups

Question

of water per day based on weight, climate, and exertion levels.
medical experts suggested that adults should have been drinkin
A NO CHANGE
B medical experts suggest that adults should drink
C medical experts suggest that adults should have drunk
D medical experts suggested that adults should drink

Answer 1

The best option to maintain grammatical correctness and clarity in the sentence is:

D medical experts suggested that adults should drink

So the complete corrected sentence would read:

"In fact, (5) between 12 and 18 cups of water per day based on weight, climate, and exertion levels, medical experts suggested that adults should drink."

This choice appropriately uses the past tense "suggested" and follows it with the correct structure "should drink."