Answer:
shaping
Explanation:
Martina is using the shaping process to train the dolphin. This process consists of repeating an activity with the aim of creating a behavioral pattern, causing that pattern to be followed by the animal (or people) that the trainer wants to behave in a different way than usual. Martina expects the dolphin to have a behavioral pattern whenever she raises a hoop, then raising the hoop, Martina progressively reinforces each small step toward goal behavior.