Final answer:
Aircrew RAICs are reserved for pilots and cabin crew as they allow for necessary access through secure airport zones which are part of their duties.
Step-by-step explanation:
The acronym RAIC stands for Restricted Area Identity Card, which is issued to individuals who require access to restricted areas at airports. The aircrew RAICs are reserved specifically for pilots and cabin crew. These credentials are essential as they allow the aircrew to move through secure airport zones as part of their operational duties. Therefore, the correct answer to the question 'Who are the aircrew RAICs reserved for?' is C) Pilots and Cabin Crew. Airport staff, ground crew, and air traffic controllers may have their specific types of access badges, which are distinct from the aircrew RAIC.