Final answer:
Rainsford's exceptional fitness comes to light through his physical feats in 'The Most Dangerous Game', including surviving a stormy sea and outlasting a deadly hunting game.
Step-by-step explanation:
We know that Rainsford is an exceptionally fit man in Richard Connell's 'The Most Dangerous Game' through descriptions of his physical abilities and endurance. First, Rainsford is depicted as an excellent swimmer who, despite a rough sea after falling off a yacht, can reach the shore of an unknown island. Furthermore, his survival in the subsequent 'game' against General Zaroff, where he navigates through dense forests, creates intricate traps, and ultimately manages to defeat his opponent, indicates exceptional physical fitness and mental resilience.
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