Concerning the Relationship Between Reaction Time, Brain Functions, and IQ

Multiple Choice

Concerning the relationship between reaction time, brain functions, and IQ, which of the following statements is FALSE?​

A) ​People with higher intelligence tend to have faster reaction times.
B) ​Brain images reveal that parts of the frontal cortex are larger in people with higher IQs.
C) ​Brain areas that control higher mental abilities usually become less active during reaction time testing.
D) ​Noticeable differences between younger and older participants in a brain imaging study suggest that the way the brain expresses intelligence changes as we age.