Why Do We Know So Little About Normal Middle-Aged Brains

Multiple Choice

Why do we know so little about normal middle-aged brains?

A) Research has mostly focused more on children's brain functions.
B) Most research has focused on changes associated with trauma and disease.
C) Research has generally been focused on the brain functions of the elderly.
D) Research has always been limited by the availability of research subjects who,in this case,are in their peak working years.