Which statement best describes an illegal substitute?

• A. A and B.
• B. A.
• C. B.
• D. A,B,C.

Answer: (D)

Substitution rules require that a player enters the game only after reporting to the umpire and taking a legal position at the proper time, with any re-entry following the allowed limits. An illegal substitute is someone who enters or re-enters in a way that isn’t permitted by those rules—entering without proper reporting, entering at an improper time, or re-entering when not allowed. If each described situation fits one of those improper entry conditions, then all of them together describe illegal substitutes. That’s why choosing the option that includes all three scenarios is best, because it captures every way a substitute can violate the rule. When such an illegal entry is detected, the umpire enforces the substitution rule, typically addressing the infraction and restoring the correct lineup.