It is mandatory for the catcher's mask and helmet combination to have dual ear flaps regardless of protection.

The correct answer is that it is false that the catcher's mask and helmet combination must have dual ear flaps regardless of protection. According to NFHS baseball rules, while safety standards are emphasized, there are specific guidelines that consider different types of protective headgear. A catcher's helmet may be designed with a one-ear flap option if it meets certain safety certifications, especially in cases where traditional designs may not offer dual ear flaps but still provide a high level of protection. Thus, the regulations allow for some flexibility based on the design and manufacturer specifications, rather than enforcing a blanket requirement for dual ear flaps on all types of catcher's gear. This recognizes advancements in helmet technology and ensures that players can maintain safety without being constrained by overly rigid equipment rules.