The correct option is D b, d, c, a
Rajendra Prasad was the first President of India. He was one of the architects of the Indian Republic, having served as the President of the Constituent Assembly. Prasad is the only President to have been elected twice for the office.
Sarvepalli Radhakrishnan was an Indian philosopher and statesman who was the first Vice President of India (1952-1962) and the second President of India from 1962 to 1967. Dr Zakir Hussain was the third President of India from May 13, 1967 until his death.
Varahagiri Venkata Giri commonly known as V.V.Giri, was the fourth President of the Republic of India from 24 August 1969 to 23 August 1974. He served as Acting President of India from 3 May 1969 to 20 July 1969, before getting elected.