Which practice could increase your risk of contracting a foodborne illness?

a. washing hands with hot, soapy water before meals
b. refrigerating leftovers promptly
c. cooking meat to the recommended internal temperature
d. dicing vegetables on the same board that was used to cut up raw chicken
e. using an alcohol-based sanitizing gel if soap and water are not available

d. dicing vegetables on the same board that was used to cut up raw chicken