Explanation:

correct anwswer is B.(2-3-1)

Explanation:When the Congress ministries in the Provinces resigned, the British arose and wanted to get support of the Congress for war. In March 1940, Congress met at Ramgarh in Bihar in its annual session. He Congress passed a resolution offering the British Government support in war, if a provisional National Government is setup at Centre.This was responded by Lord Linlithgow in the sort of a proposal which is called August Offer.

The august Offer turned down the demand of the Congress to set up a national Government at the center but proposed the following:
1.After the war, a representative “Constitution Making Body” shall be appointed immediately after the war.
2.The number of the Indians in the Viceroy’s Executive council will be increased.
3.A war advisory Council would be set up.

The Poona Pact was the agreement between Mahatma Gandhi and Dr. Br Ambedkar reached on 25 September 1932. The major points in this pact were as follows:
1.148 seats were to be allotted to the depressed classes in the provincial legislatures. This was more than double from the 71 seats as promised in the Communal Award.
2.Certain percentage of the seats allotted to the general Non-Muslim electorate would be reserved for the depressed classes.
3.Congress agreed that adequate representation would be given to the depressed classes in the civil services.
4.The depressed classes agreed to adhere to the principle of Joint Electorate.

Third Round Table Conference was held in London on November 17, 1932.

This was just a nominal conference, Congress refused to attend it (not invited, in fact) and in Britain, the Labor party also refused to not to attend it.So, only 46 people reached out there.