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.
It could be either A or D, but I due to the lack of third party votes they're not really counted in elections, so answer D.