Which of the Following Is True in Regard to Language

Which of the following is true in regard to language development?

A) In the child,the brain increases its weight primarily through the formation of neural pathways.
B) Motor and sensory pathways develop before higher cortical pathways.
C) The central and peripheral pathways of speech and language are not fully developed until the child reaches school age.
D) The ability to imitate sounds depends solely upon the development of the auditory cortex.