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Which combination of hygiene practices would be most effective for preventing the spread of foodborne illnesses in a community kitchen?

1 ) 

Washing hands before handling food and keeping food covered at room temperature

2 ) 

Washing raw fruits and vegetables and using the same cutting board for all foods

3 ) 

Washing hands after going to the toilet and washing kitchen surfaces with hot soapy water

4 ) 

Keeping food covered and washing hands only before preparing meals

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