Eliminating the spread of germs, viruses, bacterias, feces, for the book's hands to the food
National Police Week (NPW) held May 11 – 17 each year in Washington, D.C. honors the service and sacrifice of U.S. law enforcement officers. On May 11 and 12, surviving families and co-workers begin arriving in Washington, D.C. for the events.
There have many accidents during airshows; for example, last year the wind toppled a tent and equipment on top of bystanders.
I would say A for question 4