Answer:
c) Jack will not understand the club’s decision unless he talks to Christopher.
Explanation:
A vague pronoun is a pronoun that does not clearly indicate which antecedent (or noun) it is referring to. All options, except option C, have a vague pronoun because in these sentences it is not clear whether “he” (the pronoun) is referring to the antecedent “Jack” or “Christopher.”
Option C, on the other hand, is the one that corrects the vague pronoun because it clearly states that the pronoun “he” refers to “Jack” only.
In your English class when building a body paragraph you need to use that says evidence means matters format. First you say what your evidence says. After that you give the evidence such as a quote. After you give the evidence to say what it means and then you explain why that matters.