'X', born in the UK, was conferred the Nobel Prize in 2025. He was a professor in an American university when this prize was announced. Identify 'X':
Correct answer: C
Explanation
John Clarke is the correct answer. He was born in Cambridge, United Kingdom, and was affiliated with the University of California, Berkeley when the 2025 Nobel Prize in Physics was announced. The prize was awarded jointly to John Clarke, Michel H. Devoret and John M. Martinis for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit. Richard Robson was a 2025 Chemistry laureate, but the clue about a UK-born laureate who was a professor in an American university points to John Clarke.