Operational readiness requires plans to be tested and evaluated. Which of the following applies? Only full-scale exercises should be used to validate operational readiness. Small group and tabletop exercises should not be part of the official training program. Workers are knowledgeable and know how to respond to a chemical spill, safety equipment is inspected and declared usable, and keys are readily available to retrieve high priced instruments in locked cabinets. The initial incident commander should be someone from senior management. Employees at the level of lab technician or part-time security guard should not be allowed to assume a leadership role in the initial phases of an incident. The plan should only consider normal business hours. It is not required to cover a 24-hour, 7-day schedule