Answer: B. To pull in the opposite direction.
Explanation: The connotation of a word is the meaning given by the context or even by the readers, based on their emotions or personal experiences, it is the antonym of denotation, which is the literal meaning of a word, the one that we can find in a dictionary. In the given passage written by a teen hero, the connotation of the word "detract" is "to pull in the opposite direction" he is expressing that he won't let obstacles prevent him to complete his mission.