The Clark County Sheriff's Department schecules police officers for B-hour shifts. The beginning times for the shifts are Bt00 a.m., noon, 4:00 p.m., 8:00 p.m midnight, and 4:00a.m. An officer beginning a shift at one of these times works for the next 8 hours. During normal weekday operations, the number of equired. If your answer is zern an-ificers that should be scheduled to begin the B-hour shifts at each of the six times to minimize the total number of officers