When children adapt their current understandings to incorporate their new experience, this is known as: ?

The correct answer is accommodation.

Accommodation is a concept from Jean Piaget's theory of cognitive development. It refers to the process whereby individuals adapt and expand their existing knowledge (or schema) to incorporate new experiences or knowledge. An example of accommodation could be a child learning that not all four-legged animals are dogs; four-legged animals could also be horses, goats or tigers. 

C) germany is the anwser

You don’t list any options but the one that frets overspending and the consequences of that.