Final answer:
FAA advisory circulars pertinent to Airmen are issued under subject number 60, offering guidance for certification standards and training. option b is correct
Step-by-step explanation:
Option b is correct The FAA advisory circulars containing subject matter specifically related to Airmen are issued under the subject number 60. These advisory circulars provide guidance for compliance with airman certification standards, training recommendations, and other information that helps to enhance the safety and efficiency of the national airspace system.
The FAA advisory circulars containing subject matter specifically related to Airmen are issued under subject number 60.