Directions: A part of the sentence is 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 your answer is (D).

प्र:

They had sang the national anthem before the audience dispersed.

• 1
  had sung
• 2
  was sang
• 3
  sung
• 4
  No improvement