Explanation:

- F is on the extreme left end.

- G is second from one of the ends.

- There are three people between F and B.

- E has an equal number of people on both sides.

- A is immediately to the right of C.

- A does not sit at the corner.

Let's arrange them:

1. Start with F at the extreme left: F _ _ _ _ _ _

2. Three people between F and B: F _ _ _ B _ _

3. Placement of G second from the end (consider right end): F _ _ _ B G _

4. E has equal people on each side, so sits in middle: F _ E _ B G _

5. A is not at the corner and is immediate right of C: F C A E B G _

So, A is between F and B:

- Option 5: A is correct