The correct option is C America
The Indo-Pakistani war of 1971 was fought with the backdrop of international politics of the United States. US Navy task force fleet of US 7th fleet was deployed in the Bay of Bengal by the President Nixon administration in December 1971. It was a show of force by the USA in support of Pakistan. As the Soviet Union was aligned with India, the Indo-Pakistani war threatened to spread beyond the borders of India, Pakistan, and Bangladesh.