I believe the answer is A
Hope this helps :)
A cracked pan is a safety hazard because:
1. It can cause food to slip through cracks
2. It can cause injury if sharp ends come in contact with human skin.
3. Could suddenly snap due to the heat and cause various injuries
Answer: Skin
Explanation:
Level one of this system consists of physical barriers like your skin and the tears, sweat, saliva and mucous produced by the skin and mucosal lining are part of that physical barrier, too.
Answer:
so. ...........................