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Germs can enter food through multiple avenues, making the correct choice both comprehensive and accurate. This includes cross-contamination, which occurs when harmful microorganisms are transferred from one food item to another, or from surfaces, utensils, and hands that have come in contact with contaminated food. This is particularly relevant in environments like kitchens where raw foods, such as meats, come into contact with ready-to-eat foods.

Additionally, food can contain naturally occurring germs, which may not be visibly harmful but can still lead to foodborne illness if not handled properly. This highlights the importance of proper food handling and storage techniques to minimize risks.

By recognizing both cross-contamination and naturally occurring germs as pathways for contamination, this choice emphasizes a well-rounded understanding of food safety that is essential for anyone working in a food handling environment.