Directions: Read the following information carefully and answer the questions given below: A, B, C, D, E, F and G are seven students in a class. They are sitting on three benches I, II and III in such a way that there are at least two of them on each bench and there is at least one girls on each bench. C, a girl student, does not sit with A, E and D. F, a boy student, sits with only B. A sits with his best friend in bench I. G sits on bench III. E is brother of C. How many girl students are there?

• A.  3                            
• B.         4
• C.  3 or 4     
• D.         Data inadequate