Answer:
Based on the guidelines in the text, the best strategy for Opal is:
c) speaking to students who were recently accepted into the college Opal would like to attend.
Step-by-step explanation:
Remember we are taking into consideration the notion that "one should not waste time compiling information if someone else has already done it." If Opal wants to research strategies to get accepted into her college of choice, the best thing she can do is talk to people who have already accomplished that same goal. Those people already know what to do, what strategy works for that specific college. By talking to them, Opal can adapt her own strategy to better suit that college.