How many statements are correct with respect to the measures to be taken to prevent cross contamination? Options: 1. Keep raw foods and Ready-to-eat foods separate at all times 2. Wash hands thoroughly after handling raw meat 3. Use separate colour-coded chopping boards and knives for raw meat, fish, fruits, vegetables and Ready-to-eat foods4. Keep raw meat and poultry above Ready-to-eat foods in the refrigerato