The question asks to identify the person who announced the British Government's acceptance of the partition of India.
In the final stages of British rule in India, the decision was made to grant independence. However, growing political and religious divides led to the acceptance of dividing British India into two separate sovereign nations: India and Pakistan. This pivotal moment in history involved a formal announcement regarding the acceptance of this partition.
The responsibility for announcing the British Government's plan for the partition of India and the subsequent transfer of power fell upon the last Viceroy of India, Lord Mountbatten. He presented what is known as the Mountbatten Plan on June 3, 1947. This plan detailed the framework for the division of the country and the establishment of independent India and Pakistan.
Therefore, Lord Mountbatten was the figure who formally communicated the British acceptance of the partition policy.
The other options provided represent individuals who were significant in Indian history but did not make this specific announcement: