Which statement is correct regarding flight operations in Class B airspace?

In Class B airspace, it is mandatory for aircraft to be equipped with an ATC transponder and altitude reporting equipment. This requirement is crucial for ensuring effective air traffic control in busy airspace, typically surrounding major airports. The transponder provides information about the aircraft's identity, altitude, and location to air traffic controllers, which enhances safety and situational awareness.

While other statements address pilot certification requirements and additional equipment, they do not meet the specific regulatory requirements set forth for operations in Class B airspace. Therefore, understanding the importance of the ATC transponder and altitude reporting equipment is essential for safe and compliant flight operations in these highly trafficked airspace zones.