A Sociologist with a Symbolic Interactionist Orientation Would Be MOST

A sociologist with a symbolic interactionist orientation would be MOST likely to do research on which of the following question(s) ?

A) Is conflict inevitable between political parties?
B) What function does marriage serve for society?
C) What is the effect of economic conditions on the crime rate?
D) Which unstated norms govern the interactions between family members?
E) All of these choices are equally likely to be researched by a symbolic interactionist.