I'd probably go with the first one because the second one, lifting and stretching arms helps with breathing, the third, taking a run is considered a cool-down exercise and the last one is stretching legs, stretching muscles is advised after a workout. Which leaves me to believe that the answer is the first one.
Answer:
b. He writes about the young man's death in a journal that his daughter later finds.
Explanation:
According to The Ambush by Tim O'Brien, the narrator is haunted by the young man's death that he could not save because he was unable to warn him of the impending danger.
He is haunted so much that he writes about the young man's death in a journal which his daughter later finds.
Correct answer for apex 2018: Luck