Final answer:
b) Military operations or other activities are often hazardous to nonparticipating aircraft. Special use airspace or special area of operation (SAO) is airspace where military operations or other activities are often hazardous to nonparticipating aircraft, necessitating certain restrictions and procedures to ensure safety and separation.
Step-by-step explanation:
Special use airspace or special area of operation (SAO) is the designation for airspace in which military operations or other activities are often hazardous to nonparticipating aircraft.
In special use airspace, certain restrictions are put in place to ensure the safety and separation of military activities from civilian traffic. These restrictions may include temporary airspace closures or the establishment of specific procedures for nonparticipating aircraft flying in the area.
This designation is important in order to prevent accidents and ensure the smooth operation of military activities without endangering civilian aircraft.