The book ‘The Man who knew Infinity’ by Robert Kanigel is the biography of –

A. Sir C. V. Raman
B. Srinivasa Ramanujan
C. Vikram Sarabhai
D. Homi Bhabha
✅ The correct answer is option B.
The Man Who Knew Infinity : A Life of the Genius Ramanujan is a biography of the Indian mathematician Srinivasa Ramanujan, written in 1991 by Robert Kanigel and published by Washington Square Press.