I don't think a correction is necessary. Both parts of the sentence are already in the present tense. Plus, the use of "us" in the beginning of the sentence indicates a personal attachment.
He overcome his problem by building windmills
A. So you can establish your own credibility as a serious arguer
The answer is B. people need to be proactive when they witness an injustice.<span>
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Answer:
C. By critically evaluating the information you receive through the media is the correct answer.
Explanation: