Which of the Following Is Not a Reason for the Improvements

Which of the following is not a reason for the improvements in writing that occur as children mature?

A) As children mature, they gain more knowledge about the world and, therefore, have more to tell others in their writing.
B) Adolescents use a knowledge-telling strategy and young children use a knowledge-transforming strategy when writing.
C) Older children need to concentrate less on the mechanical requirements (e.g., printing, spelling, punctuation) than younger children.
D) As children develop, they have greater skill in revising and editing their writing.