The Quit India Movement was launched in response to the Cripps Proposals.

The Cripps Proposals were made by Sir Stafford Cripps, a senior British Cabinet minister, in March 1942. The proposals offered a framework for Indian political leaders to negotiate the terms of India`s future self-governance and participation in the war effort against the Axis powers during World War II. However, the Cripps Proposals fell short of meeting Indian aspirations for complete independence and were seen as unsatisfactory by Indian nationalist leaders.

In response to the Cripps Proposals, the Indian National Congress, under the leadership of Mahatma Gandhi, launched the Quit India Movement on August 8, 1942. The movement called for an immediate end to British rule in India and the establishment of a sovereign, independent nation. The Quit India Movement marked a significant escalation in the demand for independence and resulted in widespread protests, civil disobedience, and acts of nonviolent resistance across the country.

Therefore, the correct answer is "Cripps Proposals."