A man in a red shirt is standing next to a woman in a blue dress. They are both holding hands and smiling at each other. A girl is playing with a ball in a park. She is not riding a bike. An elderly couple is watching a young woman interact with her baby. The couple is smiling and seems to be enjoying the scene. We then examine the consequences of volume loss on postal systems in order to provide a measure of burden in terms of increases in average unit costs as volume is lost to competitors, or
yes
no
no
no