Read the following passage and solve the questions based on it.
‘Vaastu-shastra’ says that the dining table should not be rectangular, rather it should be hexagonal, as it helps in reducing the conflict. Accordingly Mr Verma bought a hexagonal dining table for his six office employees A, B, C, D, E and F.
One day while taking lunch they were sitting along the sides of the hexagonal table. The following information is given regarding their seating postions:
(i) F, who is sitting exactly opposite A, is to the immediate right of B.
(ii) D is between A and B and is exactly opposite C.
Four of the following pairs are alike on the basis of sitting positions and so form a group. Which is the one that does not belong to the group?