Why Is Social Psychological Research a Better Source of Information

Why is social psychological research a better source of information than our commonsense intuitions?

A) because our commonsense intuitions tend to be very unstable
B) because our commonsense intuitions often contradict each other
C) because our commonsense intuitions are not as shared by other people as we think
D) because our commonsense intuitions are generally accurate but are held with little confidence