A teacher is frustrated with the amount of trash found on the floor around the trash can instead of in the trash can. To increase the amount of trash going in the trash can, she attaches a basketball hoop on top of the trash can. A decrease of trash on the floor and an increase in trash in the trash can occurred. The teacher utilized which antecedent control strategy? O Prsenting abolishing operations increasing response effort O Decreasing response effort O Manipulating discriminative stimuli