If the aircraft's transponder fails in Class B airspace, what should the pilot do?

In the context of a transponder failure while operating in Class B airspace, the most appropriate action for a pilot is to continue to the destination if authorized by Air Traffic Control (ATC). This option recognizes that while a transponder is a crucial piece of equipment for maintaining safety and communication within busy airspace, ATC can still provide guidance and clearance for a flight to continue if they are aware of the situation.

If the transponder fails, it's important for the pilot to communicate with ATC about the issue as soon as it is safe to do so. If ATC is informed and the situation is managed properly, the pilot may be granted permission to proceed to their destination, allowing for continuous operation without unnecessary disruptions. The key factor here is the authorization from ATC, indicating their awareness and acceptance of the situation.

The other options may not be suitable or necessary given the context of an authorized continuation of the flight. For instance, requesting immediate clearance to exit Class B airspace may not always be essential if ATC can maintain the flight through communication. Landing at the nearest airport could be an overreaction to a transponder failure, especially when ATC is monitoring the situation and allowing the flight to continue safely. Finally, descending below 1