According to the Focus on Neuroscience Box on the Adolescent

According to the Focus on Neuroscience box on the adolescent brain, from approximately age 6 to adolescence, brain development is characterized by:

A) minimal change as brain development is essentially complete by early childhood.
B) a second wave of gray matter overproduction followed by a second round of neuronal pruning.
C) a doubling of the brain's size and volume.
D) a large increase in the number of neurons, but a decrease in the number of synaptic connections among neurons.