It depends on whether it is effective in the eyes of the person studying the notes, but to me it seems to be an effective way to take notes
Answer:
Personal Source
Explanation:
Dora called a friend. Someone who she trusts. She didn't seek information on her sunscreen bottles, the internet, the government, or anything else like that. She just called a friend who she judge to know what she needed to know. It is a person, who happens to be close to her, making <em>personal source </em>the only possible answer in this context.
The answer is B, public opinion polls
