No one helped me, ..................Adidn't they?Bdid they?Cdidn't he?Ddid he?Answer: B. did they? Read Explanation: No one helped me, did they?This is a tag question. The main sentence is negative ("No one helped me"), so the tag question is positive ("did they"). The auxiliary verb "did" is used because the main sentence is in the past tense. Read more in App