Theanswer is D He is determined and does not give up easily.
Explanation:
"The doctor said that with his weak heart this strain would probably kill him, but it didn’t. Trembling, he’d push himself up, turning first red, then a soft purple, and finally collapse back onto the bed like an old worn-out doll."
He try's his hardest even tho he isn't supposed to be able to do move very much on his own. He is determined to do it on his own.