Effective Classroom Discussions Look Different from Classroom to Classroom but Tend

Effective classroom discussions look different from classroom to classroom but tend to involve the following:

A) Constructing classroom discussion guidelines with students, promoting higher test scores, and developing a discussion topic that has disciplinary depth and engages student interest.
B) Constructing classroom discussion guidelines with students, constructing meaning that is memorable, and developing a discussion topic that has disciplinary depth and engages student interest.
C) Constructing classroom discussion guidelines with students, engaging in problem solving and critical thinking, and developing a discussion topic that has disciplinary depth and engages student interest.
D) Constructing classroom discussion guidelines with students, preparing the students in advance if the discussion, and developing a discussion topic that has disciplinary depth and engages student interest.