The correct answer is option 3: T. B. Sapru and M. R. Jayakar. The National Liberation Federation, also known as the Liberal Party, was formed by T. B. Sapru and M. R. Jayakar. This political party was established in India in 1936.

Option 1, which suggests that Motilal Nehru and C. R. Das formed the National Liberation Federation, is incorrect. While Motilal Nehru and C. R. Das were prominent leaders in the Indian National Congress, they did not form the Liberal Party.

Option 2, which suggests that Muhammad Ali and C. R. Das formed the National Liberation Federation, is also incorrect. Muhammad Ali was a political leader and one of the founders of the All India Muslim League, but he was not involved in the formation of the Liberal Party.

Option 4, suggesting that M. R. Jayakar and C. R. Das formed the National Liberation Federation, is also incorrect. While M. R. Jayakar was indeed involved in the formation of the Liberal Party, C. R. Das was not.

In summary, the correct answer is option 3: T. B. Sapru and M. R