Find out whether there is any error in any underlined part i.e.(a) or (b) or (c). If you find no error, your response should be indicated as (d). Hardly had he entered into the room (A)/ and taken his seat, (B)/ when the girls began to giggle. (C)/ No error (D).

• Correct answer
  A

  Option A
• B

  Option B
• C

  Option C
• D

  Option D

Hence, the correct answer is option: 'A'.