Which of the following factors contributed to the formation of the Forward Bloc by Subhas Chandra Bose in 1939 ? 1. Bose failed to win the confidence of Mahatma Gandhi. 2. The Congress Left was disunited and failed to support Bose. 3. The Communists did not support Bose in his endeavours. 4. The supporters of M.N. Roy and socialist leaders like Jayaprakash Narayan preferred Congress unity to supporting Bose. Select the answer using the code given below :