While is subordinating conjunction
She was wondering whether they've (A) completed their lifeguard training.
Answer:
At the hospital, doctors examine Ponyboy, and except for a few burns and a big bruise across his back, he's fine. He is in the waiting room, worried about Johnny and Dally, when Darry and Soda arrive. ... In that split second, Ponyboy realizes that Darry does care for him, that he was just trying too hard.
Explanation:
If you are referring his defeat at the end against the dragon, that is because of his hubris. He was too proud and believed that he could do it alone without his soldiers. This brings his defeat and he realizes that he will die because of his hubris, after which Wyglaf will take over since he was the only one brave enough to help.
C is correct i believe. its not A because that could not be a sentance byitself, not b because im sure you know why and d might be but then the teacher would be trying to explain to you something other then the rules of punctuation