All of the Following Statements About Structural and Functional Change

All of the following statements about structural and functional change involving the prefrontal cortex during adolescence are true except which one?

A) Patterns of activation within the prefrontal cortex generally become more focused.
B) Individuals are more likely to use multiple parts of the brain simultaneously and coordinate activity between prefrontal regions and other areas of the brain.
C) The full structural maturation of the prefrontal cortex is not complete until the mid-20s.
D) All of these are true.