Incorrect; the correct answer is C.

The best way to prevent cross-contamination is by cleaning the cutting boards and knives both before and after use, and after preparing different foods. The correct cleaning procedures should be as follows:

1. Wet the cutting board and knife;

2. Apply detergent;

3. Scrub all the surfaces and handles;

4. Rinse thoroughly; and

5. Dry with a clean towel for immediate use or let dry in a clean, dry place.

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