Researchers Studying the Volume of the Hippocampus Within the Brain

Multiple Choice

Researchers studying the volume of the hippocampus within the brain showed the importance of examining individual differences in aging by finding that:

A) most of the adults 70 and older had greater hippocampal volume than the younger adults.
B) the overall direction of hippocampal volume change was slightly positive starting at age 30.
C) at least some older adults studied had equal or higher brain volume than some young adults.
D) the greatest variation in hippocampal volume occurred among adults who were in their late 20s.