With reference to perfluoroalkyl and polyfluoroalkyl substances (PFAS) that are used in making many consumer product, consider the following statements : 1. PFAS are found to be widespread in drinking water, food and food packaging material. 2. PFAS are not easily degraded in the environment. 3. Persistent exposure to PFAS can lead to bioaccumulation in animal bodies. Which of the statements given above are correct?