The correct option is D Formation of an Indian Union with dominion status.
In 1942, a mission, called Cripps Mission, named after Sir Stafford Cripps was sent to India by British Prime Minister Churchill. It aimed to obtain Indian cooperation for the British war efforts. The main proposal of the Cripps Mission was the formation of an Indian Union with dominion status and the right to secede from the British Commonwealth. For the first time, the British government acknowledged India as a political equal.