Concept:Historical facts about Indian national leaders and their titles or roles.Explanation:Vinoba Bhave was the first individual satyagrahi, not the second. The second was Jawaharlal Nehru. So pair A is wrong.C.R. Das was popularly called Deshbandhu (Friend of the Nation). This pair is correct.William Wedderburn was not Congress President in 1907. That year the president was Rash Bihari Ghosh. So pair C is wrong.Only one pair is correct. Therefore option B is the answer.Answer:B. C.R. Das - Deshbandhu