Who among the following, was the President of the All-India States' Peoples' Conference in 1939?

1. The All-India States' Peoples' Conference (AISPC) was a conglomerate of political movements in the princely states of the British Raj. 2. It aimed to bring constitutional and political reforms in the princely states and advocated for their integration with the rest of India. 3. The Ludhiana session of the AISPC was held in February 1939. 4. Jawaharlal Nehru was elected as the President for this crucial session, signaling the Indian National Congress's increasing involvement in the affairs of the princely states. 5. Jaya Prakash Narayan, Sheikh Abdullah, and Sardar Vallabhbhai Patel were also important leaders associated with the states' peoples' movements or integration, but Nehru presided over the 1939 session.