Read the following context and choose the best option to answer the question.
Context: Once she sustained wounds , it was her lone battle to fight . All he could do then was watch and have faith . Idleness made him feel helpless . Blind trust aside , there was no shaking the looming shadow of doubt in the back of his head .
Question: Why did he feel doubt ?
Options: 
A. He was not sure he could trust her
B. He was not sure she could help
C. He was not sure she could win
D. None of the above choices .


C