. . . . . . . . sir asks a question, even we won't answer.

A. When

B. Unless

C. If

D. Hardly

Answer: Option B

Solution(By Examveda Team)

We use the conjunction 'unless' to mean 'except if'. The clause which follows unless is a subordinate clause (sc): it needs a main clause (mc) to make a complete sentence. When 'unless' comes before the main clause, we use a comma.