Your Friend Regina Tells You That Geese Must Have a Flocking

Your friend Regina tells you that geese must have a flocking instinct because she often sees geese in flocks.Regina is doing something that social psychologists have done with the problem of aggression.Regina is

A) mistaking habitat for ecology.
B) observing an adaptation-level phenomenon.
C) experiencing relative deprivation.
D) trying to explain observed behaviour by naming it.