Jason suffers from major depressive disorder and has difficulty regulating his emotions.Research suggests that his problems are related to

A) an increase in brain activity.
B) low functional connectivity among brain regions responsible for emotion and emotion regulation.
C) increased activity in his frontal lobe and amygdala.
D) an increase in both serotonin and norepinephrine.

Research has found that individuals with major depressive disorder often have reduced functional connectivity among brain regions responsible for emotion and emotion regulation. This can lead to difficulty regulating emotions and contribute to symptoms of depression. Increased brain activity, activity in specific brain regions, and changes in neurotransmitters like serotonin and norepinephrine may also be involved in depression, but the question specifically asks about the most related factor to Jason's difficulty regulating his emotions.