Which of the Following Developmental Changes in the Brain Occurs

Which of the following developmental changes in the brain occurs after birth?

A) The number of dendrites and synapses increases until adolescence, after which it reduces.
B) The number of axons increases and the number of dendrites decreases throughout adolescence and adulthood.
C) No developmental changes occur after birth because all the neurons the brain will ever have are present at birth.
D) New neurons grow until adolescence, after which they begin to die.