Cooperative Learning Can Be Justified from Three of the Following

Cooperative learning can be justified from three of the following theoretical concepts.Which one of the underlined concepts that follow is least relevant to cooperative learning?

A) Students in a cooperative group provide scaffolding for one another as they attempt challenging tasks.
B) Students are getting continuous reinforcement for their responses.
C) Social interaction among students facilitates knowledge construction.
D) Students' self-efficacy increases when they see their classmates succeed.