The 1929 Session of Indian National Congress is of significance in the history of the Freedom Movement because the

1. The 1929 Session of the Indian National Congress was held in Lahore under the presidency of Jawaharlal Nehru. 2. This session holds immense significance in the history of the Freedom Movement because it marked a pivotal shift in the Congress's objective. 3. Option (A) is incorrect as the demand for Self-Government or Dominion Status was the earlier objective, which was now deemed insufficient. 4. Option (B) is correct. At the Lahore session, the Congress formally adopted the goal of 'Poorna Swaraj' or Complete Independence, rejecting Dominion Status. 5. Option (C) is incorrect. The Non-Cooperation Movement was launched much earlier, in 1920. 6. Option (D) is incorrect. The Lahore session actually decided to boycott the first Round Table Conference. The decision to participate came later under different circumstances (Gandhi-Irwin Pact before the second RTC). 7. The session also decided to celebrate 26th January 1930 as the first Independence Day.