In an odd-position round, teams in position 3 and 5 play against teams positioned immediately above them.
In an even-position round, teams in position 2 and 4 play against teams positioned immediately above them.
When a lower-positioned team defeats a higher-positioned team, the two teams switch positions after the round is completed.
19. Which one of the of following could be the order of teams, from position 1 through position 5 respectively, after exactly one round of even-position matches if no odd-position round has yet been played?
(A) J , R, M, L, S
(B) J, R, S, L, M
(C) R, J, M, L, S
(D) R, J, M, S, L
(E) R, S, J, L, M
20. If exactly two rounds of matches have been played, beginning with an odd-position round, and if the lower-positioned teams have won every match in those two rounds, then each of the following must be true EXCEPT:
(A) L is one position higher than J.
(B) R is one position higher than L.
(C) S is one position higher than R.