Directions : In these questions , a part of the sentence is given in bold . Below are given alternatives to the bold part at (A) , (B) and (C) which may improve the sentence . Choose the correct alternative . In case no improvement is needed you answer is (D ) .

प्र:

Vivek was astonished at his failure in the exam.

• 1
  at his failing
• 2
  in his failing
• 3
  No improvement
• 4
  in his failure