Guidance Counselor. Why? They're at the facility for the majority of the time. They support and advise students on a daily basis from a variety of different problems, angles, and perspectives. They're better equipped to handle student problems. Also, if you manage to look throughout your school (or any) the guidance counselor is mostly promoted as the individual to go to with academic learning issues, personal problems, and to conjure methods that help students succeed. You can make the same assumption for church pastors, social workers, and volunteer coordinators. However the key factor here is the environment, audience, and problems encountered. The other three choices have a bigger audience from different background with different problems and different scenarios.
