Answer :
c) Have been diagnosed with a foodborne illness.
Food handlers can contaminate food if they have been diagnosed with a foodborne illness, as they may carry pathogens that can spread to food, leading to outbreaks. It is crucial for food handlers to report any illness to management and refrain from working until they are cleared to return.
This measure is essential for maintaining food safety and preventing the transmission of harmful bacteria or viruses to customers.
In contrast, the other options (keeping nails short, changing gloves, and drinking from a closed beverage cup) are practices aimed at minimizing contamination and promoting hygiene in food handling. Proper protocols should always be followed to ensure food safety.