Answer:In humans, viruses that cause disease like cold and flu are spread through bodily fluids, like spit or snot. The virus is so small that it leaves our bodies in these fluids, and can even float through the air in droplets from a sneeze or cough. The virus can enter the body through the eyes, nose, or mouth
Explanation:
It's A because you basically learn like how to be happy if that makes sense
Stretching helps prevent injury.
