Which One of the Following Statements About Aging Is Most

Multiple Choice

Which one of the following statements about aging is most accurate?

A) The brain reaches its maximum weight around the seventh decade of life.
B) Synaptic connections are too fixed to permit a great deal of learning after the age of 35.
C) Despite some neuronal loss, an unlimited number of neural pathways are available and ready to be developed; therefore, additional learning can occur throughout life.
D) Learning throughout the adult and aging years is supported primarily by glial proliferation.
E) Increased efficiency of the sympathetic nervous system enhances the ability to learn.