Final answer:
DD form 365-4 (AWBS Form F) must be reviewed every 90 days, except at Ft. Rucker where it is reviewed every 45 days.
Step-by-step explanation:
The correct answer is c) 90; 45. According to the question, DD form 365-4 (AWBS Form F) must be reviewed every 90 days, except at Ft. Rucker where it is reviewed every 45 days. This form is used for the Aircraft Weight and Balance System (AWBS) and it is important to conduct regular reviews to ensure accuracy and safety in aircraft operations. By reviewing the form regularly, any changes or adjustments can be made to maintain the proper weight and balance of the aircraft.