Which of the Following Is an Example of a Behavioral

Which of the following is an example of a behavioral approach?

A) providing students with hands-on activities in which they assemble a toy to show that they have comprehended a set of directions
B) making sure that students can answer 80 percent of the comprehension questions before moving to the next level
C) having students work in pairs so they can learn from each other
D) making sure that students are in the zone of proximal development