Sentence Correction - Verbal and Reasoning

Directions to SolveWhich of phrases given below each sentence should replace the phrase printed inboldtype to make the grammatically correct? If the sentence is correct as it is, mark 'E' as the answer.
Q1:

Why did you not threw the bag away?

A did you not throw

B had you not threw

C did you not thrown

D you did not thrown

E No correction required

ANS:A - did you not throw

No answer description is available.