Which of the Following Sentences Is an Example of the Contribution

Which of the following sentences is an example of the contribution of metacognition to development?

A) Children change their memory strategies as they realize which strategies will work in which situations.
B) Children habituate to stimuli with repeated exposure to them.
C) Children who are well-liked by their peers tend to do better academically than do other children.
D) Children learn more from individuals with whom they have a positive relationship than from others.