According to "How to Think Like a Researcher," a chapter from How to Find Out Anything, one should not waste time compiling information if someone else has already done it. Opal wants to conduct research on strategies she can use to get accepted into her college of choice.

Based on the guidelines in the text, which is the best research strategy Opal should use?

conducting a Google search that asks “How hard is it to get accepted to college?”
reading a book entitled A Complete History of the 100 Oldest Colleges in the United States
speaking to students who were recently accepted into the college Opal would like to attend
asking her high school teachers for advice about what she should write on her college application