To determine who is opposite E, we need to visualize the arrangement. If A is left of B, and C is right of D, we can deduce that B is opposite E.

With A to the left of B, and C opposite D, E must be next to B, making B the one sitting next to E.

To determine who is opposite E, we need to visualize the arrangement. If A is left of B, and C is right of D, we can deduce that B is opposite E.

If A is to the left of B, then B is to the right of A. C is to the right of A, which means C is also to the right of B. Therefore, D must be opposite B.

The arrangement can be visualized as B-A-C-D-E-F. Therefore, E is sitting opposite B.

If A is between B and C, then E must be opposite D.

Since A is not next to B, it is possible for B to be next to D, making this statement true in some arrangements.

Arranging A, B, C, D, and E, we find that E is to the left of D.

By arranging A, B, and C, we can find the positions of D, E, and F. The person opposite D will be F.

Since D is opposite E, F sitting to the left of D means F is also opposite to E. Therefore, the person sitting to the right of E is F.

The arrangement can be visualized as A-B-C-E-D-F. Therefore, A is sitting to the left of E.

Since A cannot sit next to B, C, D, or E can be seated next to A. Therefore, C is a valid option.

Since C is between A and D, and A is not next to B, E must be next to B.

Since C is between A and D, and A is not next to B, E must be next to D.

Arranging the friends based on the given information, we find that B is opposite to D.

Since R is between P and Q, we can place them in a circle. S must be placed such that T is directly opposite S, as there are only five friends.

Since R is between P and Q, we can place them in the circle. S will then be opposite T, as there are only five friends.

P is between Q and R, which means Q is on one side of P and R on the other. Since S is opposite T, the only person next to R must be P.

With A between B and C, and D opposite A, F must be next to D in the arrangement.

Since C is opposite A, and A is next to B, D must be next to C.

If A is next to B and C is opposite A, then E must be to the right of C in the circular arrangement.

The arrangement is B-A-C. The person sitting opposite B would be E.

If A is to the left of B and C is to the right, D must be opposite A.

The arrangement is E-D-F. The person sitting opposite E would be I.

With E between F and G, and H opposite E, the only person who can sit next to H is I.

By placing G and determining F's position, we can find that I must be opposite G.

Since L is opposite J, and J is next to K, M must be next to L.

If L is to the right of M, and N is to the left of L, we can deduce that H is sitting opposite M.

With M between N and O, and P opposite M, N will be to the left of P.

Given that M is between N and O, and P is opposite M, R must be next to O in the arrangement.