Glad to know you are submitting to that section. It has lately become an arid space. This issue of categories had come up some time back and we discussed it with the Webmasters. They have instructed not to select any category from 'Filter Categories' but simply select from 'Choose a Category'. Those are arranged in alphabetical order so you will find the category for scholarships just below the one on online education. Let me know if you require further guidance.
I will be putting up a separate thread soon on a few updates and will mention this in that thread.
When you make a commitment, you create hope. When you keep a commitment you create trust! ~ John C. Maxwell