Which One of the Following Statements Best Describes the Idea

Which one of the following statements best describes the idea that learning involves a process of construction?

A) Students must learn certain things very well before they can begin to understand other things.
B) Students must learn ideas in a concrete form before learning them as abstractions.
C) Students use pieces of information about a topic to develop their own understanding.
D) Students' thought processes become increasingly complex and sophisticated as they grow older.