The dogs salivating for food is the unconditioned response in Pavlov's experiment. A conditioned stimulus is a stimulus that can eventually trigger a conditioned response. In the described experiment, the conditioned stimulus was the ringing of the bell, and the conditioned response was salivation
they could, 1. do a commercial about international children enjoying exercise and smiling , playing etc then flash to a bold screen showing the health benefits these children will probably enjoy because if 20 minutes exercise a day. 2. they could print brochures and schools and government offices could plant 5hrm in magazine racks.
