प्र: Which of the Phrases(1), (2), (3) and (4) given below each sentence should replace the phrases printed in bold in the sentence to make it grammatically correct. The ban is applied by the district’s commercial taxes department after protests by a community, which had threat to burn theatres screening the controversial movie.

• 1
  had threated to burn
• 2
  had threatened to burn
• 3
  had threatened to burning
• 4
  had threats of burning