If a catcher arrives with detached mask and skull cap, what is the umpire's ruling?

The correct answer emphasizes the importance of safety regulations in baseball regarding player equipment. The NFHS rules mandate that catchers must wear a helmet-mask combination that is designed to provide adequate protection. A detached mask and skull cap do not meet these safety requirements because they do not afford the necessary protection to the catcher’s head and face.

It is crucial for the safety of the player, especially in the catcher position where they are likely to experience direct impacts from foul tips or other contact. By enforcing this rule, the umpire ensures that all players are adequately protected during the game, reflecting the sport's commitment to the health and safety of its participants.

In contrast, the other options either disregard safety protocols or place undue blame on the head coach without addressing the core issue of equipment safety, which is central to the ruling in this scenario.