SUNY elicott dorm

So i am going to attend UB and I am pretty sure i am going to room in ellicott. They gave options to choose between ellicott quad, ellicott quad with bath, or double with double. I am just wondering the difference between the three. Does the quad with bath have their own bathroom? Because if so I would rather have that than share with the entire floor.
Can you tell me the difference among the three?

Check here:
You can see the floor plans and actual photos.