All of the following statements regarding instrument sets are true EXCEPT?1. instruments must be placed in perforrated trays 2. heavy instruments are placed are placed on the bottom 3. all instruments must be closed 4. all detachable parts must be disassembled

All of the following statements regarding instrument sets are true EXCEPT?1. instruments must be placed in perforrated trays 2. heavy instruments are placed are placed on the bottom 3. all instruments must be closed 4. all detachable parts must be disassembled

all instruments must be closed