Ans Should be D) -F
clues
1. A and G must be seated at the extreme right end of the table, which is closest to the exit.
2. B must be in the centre chair.
3. C and D dislike one another and should be seated as far apart as possible.
4.E and F are best friends and want to sit together
sitting like this way C/D E/F F/E B D/C A/G G/A
SO F is not at end of the table .