Which of the following is the best example of an informed opinion?

A.Candidate A would make a fantastic school president, because she has the coolest friends.
B.Candidate A has worked with the school administration to lengthen lunchtime, gain extra breaks for students, and extend transitions between classes.
C.Candidate A would make the best school president because she’s done it before.
D.Candidate A is well-liked among both students and faculty.