Which of the Following Statements Demonstrates That the Ideas of Marietta

Which of the following statements demonstrates that the ideas of Marietta Johnson are consistent with modern-day constructivists?

A) Teachers should encourage the imposition of standards from outside the school.
B) Lessons should be structured around enduring human concerns explored in the great works.
C) Children should be engaged in active exploration of their environment.
D) Schools should be used as a tool to reform society.