According to NSF/ANSI 49, Type B cabinets require an exhaust alarm that:a. indicates a 40% loss of exhaust volume within 15 secondsb. indicates a 10% loss of exhaust volume within 15 secondsc. indicates a 20% loss of exhaust volume within 15 secondsd. indicates a 5% loss of exhaust volume within 10 secondse. indicates a 10% loss of exhaust volume within 10 seconds