Scaffolding Is Used to Assist a Child in His or Her

Scaffolding is used to assist a child in his or her problem solving.It is important ____________.

A) to observe carefully,so you can prevent problems and avoid scaffolding
B) to time your assistance for when the child is about to give up
C) to set up the environment,so no scaffolding is ever needed
D) All of these answers are correct.