Stat multiple choice question need help. Hope can get the right answer.

According to Facebook's self-reported statistics, the average Facebook user Select one answer. has 130 Facebook friends. For a statistics project a student at Contra Costa 10 points College tests the hypothesis that CCC students will average more than 130 Facebook friends. She randomly selects 3 classes from the schedule of classes and distributes a survey in these classes. Her sample contains 45 students. Here are the null and alternative hypotheses for her study: H : M = 130, H,: M > 130. What does u represent in these hypotheses? A. O Mean number of Facebook friends for CCC students B. O Mean number of Facebook friends for the CCC students in her sample C. O Mean number of Facebook friends for the average user