Final answer:
The teacher is using Non-contingent reinforcement to decrease the student's disruptive behavior by providing attention on a regular, fixed schedule regardless of the student's behavior. optipn d is correct answer
Step-by-step explanation:
The antecedent control strategy the teacher is using to decrease the student's disruptive behavior is Non-contingent reinforcement. This strategy involves giving the student attention on a fixed schedule, regardless of the student's behavior, thereby reducing the chances that the disruptive behavior will occur to gain attention.
Since the student receives attention without engaging in disruptive behavior, the behavior becomes less reinforcing. It is different from extinction (where a behavior decreases because it is no longer reinforced), redirection (changing the focus of a behavior to a more acceptable option), or differential reinforcement (reinforcing a different, acceptable behavior while withholding reinforcement for the undesirable behavior). optipn d is correct answer