Which of the following group of scientists was awarded the 2019 Nobel Prize in Physiology or Medicine "for their discoveries of how cells sense and adapt to oxygen availability"?

• A. Fraser Stoddart, Jean-Pierre Sauvage and Ben Feringa
• B. Kip Thorne, Rainer Weiss and Barry Barish
• C. William G Kaelin Jr, Sir Peter J Ratcliffe and Gregg L Semenza
• D. John B Goodenough, M Stanley Whittingham and Akira Yoshino