Which of the Following Is an Example of Reciprocal Teaching

Which of the following is an example of reciprocal teaching?

A) Ella, a talented math student, works on a multiplication worksheet with Caleb, a struggling student.
B) Katianna presents a geography project first to her own third-grade class and then to a second-grade class.
C) Nicco, Tyler, and their teacher read a passage on ecosystems and take turns leading dialogues on it.
D) Angela, a gifted student, visits a resource room where Ms. Dailey shows her computer programming techniques.