Answer:
Packaging staple is the correct example of physical contamination.
Explanation:
Physical contamination generally occurs in food when any foreign objects mostly hard and sharp objects that may result in injuries like choking, dental damage, and sometimes even death. Here, the packaging staple is a physical contaminant.
Other types of contamination are biological contamination and chemical contamination that occurs due to biological and chemical activities. The virus in a hamburger is an example of biological contamination, whereas, sanitizer residue and ice on frozen fish are examples of chemical contamination.