Answer:
The answer is: Contamination of food by contacting others, or handling them during their preparation.
Step-by-step explanation:
Cross contamination is the process by which food comes into contact with others that are cooked or not and eventually become contaminated as a result of the exchange of foreign substances.
Cross contamination is produced by handling food during its preparation, since microorganisms are transferred through hands, kitchen equipment, utensils and cutting boards.
The answer is: Contamination of food by contacting others, or handling them during their preparation.