Preset trays hold all instruments need in a particular procedure. It is put together in a tub and trays are easily exchanged for other instruments. It is designed to increase efficiency in operations, minimize waiting time and space is reconfigured.
The answer is A
Hope this helps! :3
<span>illness roots from behavioral stress is a true statement since as we all know stress affects the psychological, mental as well as the physical state of a person. if stress is not managed properly, adverse effects will result. On the other hand, stress can be somehow positive for example to stay productive.</span>
