The correct answer is: C. both (a) and (b)
Zakir Hussain was the third President of India and the second Vice President of India. He was born in 1897 in Hyderabad, Deccan, British India (now Hyderabad, India). He was a scholar, educationist, and politician. He was the founder of Jamia Millia Islamia, a central university in Delhi, India. He was also the Vice Chancellor of Aligarh Muslim University. He was a member of the Indian National Congress and served as the Minister of Education in the first cabinet of Jawaharlal Nehru. He was elected as the Vice President of India in 1962 and as the President of India in 1967. He died in office in 1969.
Option A is correct because Zakir Hussain was the third President of India. He was elected as the President of India in 1967 and served until his death in 1969.
Option B is correct because Zakir Hussain was the second Vice President of India. He was elected as the Vice President of India in 1962 and served until his election as the President of India in 1967.
Option C is the correct answer because it includes both Option A and Option B.