Which of the Following Questions Best Represent a Teachers' Conceptual

Which of the following questions best represent a teachers' conceptual dilemma of constructivism in practice?

A) How do I manage a classroom in which students talk to one another rather than me?
B) How do I gain the support of administrators and parents for teaching in such a radically different way?
C) If certain ideas are considered correct by experts, should students internalize those ideas instead of constructing their own?
D) Can I trust students to accept responsibility for their own learning?