(E) Tamio enters the marathon and May enters the sprint.
13. If Norma enters the marathon, then which one of the following cannot be true?
(A) Both Kevin and Olivia enter the sprint.
(B) Kevin enters the relay and Olivia enters the sprint.
(C) Kevin enters the marathon and May enters the relay.
(D) Julio enters the marathon and May enters the relay.
(E) Julio enters the marathon and Kevin enters the relay.
14. If both Kevin and Olivia enter the relay, then which one of the following must be true?
(A) Julion and Tamio enter the marathon.
(B) May enters the marathon.
(C) May enters the sprint.
(D) Tamio enters the sprint.
(E) Norma enters the sprint.
15. If both Julio and Kevin enter the same event, then which of the following can be true?
Ⅰ.Julio enters the relay.
Ⅱ. May enters the marathon.
Ⅲ. Olivia enters the relay.
(A) Ⅰonly
(B) Ⅱ only