Step 1: Understanding the Concept:
This question uses terminology from Applied Behavior Analysis (ABA). We need to understand the ABC model of behavior:
A - Antecedent: The event, action, or circumstance that occurs immediately before a behavior. It's the "trigger."
B - Behavior: The behavior itself.
C - Consequence: The action or response that follows the behavior.
An antecedent operation or intervention is a strategy that involves modifying the environment or context (the antecedent) to change a behavior.
Step 2: Detailed Explanation:
Let's analyze the scenario in ABC terms. The problem behavior (B) is "not completing his homework." The target behavior we want to see is "completing his homework."
The original antecedent that leads to him being too tired is "Playing football after school" (Option B).
The problem consequence is "Not completing his homework" (Option A).
The desired outcome is "Completing his homework happily" (Option D).
The counsellor's advice is to modify the antecedent. Instead of having the antecedent be "long football practice," the counsellor introduces an intervention to change it. This intervention, this antecedent operation, is to "Reduce his football training time on weekdays" (Option C). By changing this trigger event, the counsellor aims to change the subsequent behavior (being able to do homework).
Step 3: Final Answer:
The antecedent operation (the intervention to change the antecedent conditions) is to Reduce his football training time on weekdays.