During postnatal development between the ages of about 2 and 25 years, the brain undergoes massive neuronal death and addition of glial cells. after this period, people appear to be better at decision making. your hypothesis is
a. cell death and glial growth are indicative of erosion of neural circuit function
b. cell death and glial growth are indicative of fewer but more efficient neural circuits
c. cell death and glial growth are indicative of most glial cells ultimately differentiating into neurons
d. all of the above
e. none of the above