B states that students with moderate levels of spending on recreation experience less anxiety or depression.

The hypotheses state that those with a high level of spending could lower their spending without increasing their anxiety or depression (it can decrease or stay the same ).

Moderate spenders experience less anxiety, and low spenders experience the same anxiety and depression as high spenders. Therefore, B helps the argument.

Hey, It doesn't have to be people in prestigious positions, it can simply be professors who you know. You can add a letter of recommendation from work if you want (especially if you have been out of school for a minute) but having a least two professors recommend you is the trick.