The jigsaw classroom succeeds in demonstrating positive results with regard to self-esteem and increased liking among peers of diverse groups.It yields these results because:

A) students' responsibilities are informally structured.
B) minority children compete in areas where they would not normally.
C) stereotypes are made salient prior to the assigned tasks.
D) it is beneficial for each child to cooperate with others.

The jigsaw classroom relies on cooperative learning, where each student is responsible for their own learning as well as the learning of their peers. This leads to increased cooperation and communication among students of diverse groups, ultimately resulting in increased self-esteem and liking among peers. It is not necessary to make stereotypes salient or have minority students compete in new areas for the jigsaw classroom to be successful.