Which of the Following Has Been Found by Researchers Examining

Which of the following has been found by researchers examining cerebral asymmetry?

A) When most people experience positive emotions, they have higher levels of electrical activity in their right hemisphere.
B) Most people have more electrical activity in the left hemisphere than the right hemisphere.
C) Changes in electrical activity can be detected when people experience negative emotions, but not when they experience positive emotions.
D) Differences in hemispheric activity levels can be detected in children as young as 10 months old.