Molly took out a disability insurance policy. A few years after the purchase, she severely injured her back and was unable to work. She immediately filed a claim with her insurer to start receiving benefits. The insurer asked for an attending physician's statement (APS) describing her condition and stating when that condition started. Why is it important for the insurer to know on what date Molly became disabled? a) To determine when the 30-day survival period began. b) To determine when the incontestability period began. c) To determine when the 30-day grace period began. d) To determine when the waiting period began