Answer:
The correct answer is: Classical conditioning.
Explanation:
Classical conditioning occurs when a strong or biological stimulus that's very desired by an individual (Food) is paired/associated with a previously neutral stimulus (The sound of a bell) In this case: The clinking sound of the dog food on the dish.
If both stimuli are paired frequently, as soon as the previously neutral stimulus is presented (The clinking sound), the dog would expect the (Food).
In conclusion, the correct answer is: Classical conditioning.