B is certainly the moral answer. When a source is shown to be untrustworthy, citing it only amplifies the problem. It is similar to how fake news stories have become a problem on social media. Often people share them without taking time to confirm they are true.
B ,A character is faced with a decision requiring her to allow another’s death or sacrifice herself.
Antecedent of a pronoun is a word that the pronoun refers to, or replaces. So, in this sentence, we are looking for the antecedent of the pronoun IT. The pronoun IT replaces the noun Chicago, which means that the word Chicago is the antecedent of the pronoun IT.
IT provides the best opportunity, meaning that Chicago does that.
