Concept:Place the players whose seats are fixed first.
Then check who is left with only middle seats.
Explanation:Number the seats
1 to
7 from left to right.
B must receive the trophy in the centre, so B sits at seat
4.
A and G leave early, so they take the two extreme right seats, seats
6 and
7.
C and D must be as far apart as possible.
Among the remaining seats
1,2,3,5, the farthest pair is seats
1 and
5.
So C and D occupy seats
1 and
5.
The only seats left are
2 and
3, which are taken by E and F.
Hence F never sits at either end.
Answer:F, which is option C.