Which One of the Following Scenarios Best Reflects the Basic

Which one of the following scenarios best reflects the basic idea of social constructivism?

A) Two students discuss possible interpretations of the proverb,"We only know the worth of water when the well is dry."
B) A teacher assigns a laboratory activity using cumbersome equipment that students can only use successfully by working in pairs.
C) When a student borrows a classmate's marker without asking and then forgets to put the cap back on,leaving it dried out and useless by the following morning,her teacher reminds her of one of the class rules: "Respect other students' property."
D) Four students in a study group divide the day's reading assignment into four sections. Each student reads a section and then teaches the material to the other group members.