Six boys, A, B, C, D, E and F, are sitting around a rectangular table facing towards the centre (not necessarily in the same order). 4 boys are sitting in the corners, and 1 boy is sitting in the middle of each shorter side of the table. E is second to the right of B and second to the left of
A. D is exactly opposite to E, and D is not sitting in the corner. Which of the following statements is definitely correct?
I. C and F are both next to E.
II. B is diagonally opposite to
C.