C) A certain cool-headedness had come to him
E) [D]oggedly he swam in that direction, swimming with slow, deliberate strokes, conserving his strength
Both of these sentences show that Rainsford can easily handle stress. The first sentence says that he was overcome by “cool-headedness”. In the second stanza the speaker uses words like “doggedly, slow, deliberate and conserving his strength.” In all of these instances Rainsford was in danger,; however, he was able to keep calm and think clearly about what he should do next.