54 If you were writing that the four friends of "Dr. Heidegger's Experiment" did not get young again, what passage from the story would you use to support your thesis? A. P 27: Their eyes grew clear and bright; a dark shade deepened among their silvery locks; B. P 3: If all stories were true, Doctor Heidegger's study must have been a very curious place. C. P 42: But they were young: their burning passions proved them so.​