Which among the following is/are true about mathematical games?
A. Mathematical games are like open-ended play.
B. Mathematical games are governed by a set of rules And have a clear underlying structure.
C. Mathematical games have specific mathematical cognitive objectives.
Choose the correct option:

Correct option is D

Mathematical games are governed by a set of rules and have a clear underlying structure (B).
Mathematical games often have specific mathematical cognitive objectives, providing opportunities for learning and practicing mathematical concepts and skills (C).
While mathematical games can have an open-ended play aspect (like open-ended play in general), the defining characteristics often involve rules and a structured mathematical focus.