The mother should ignore his son, Luca's behavior and continue shopping.
Explanation:
Operant conditioning is a procedure which is used to bring certain learning in a person. This process involves reinforcement or punishment which as a tool to modify and change the strength of certain behavior. In this process, punishment or reward comes in picture to control the behavior when there is a presence of stimuli. Here, the ignorance is the punishment that was needed to control Luca's behavior i.e., the temper tantrums which is stimuli in his behavior.
