I believe that the answer to the question is B.
I believe you mean the nuclear family? If this is the case, it is two heterosexual parents (male and female) with one or more kids. If you meant the unclear family this would be the family that always does weird things and never makes scene.
I believe the answer is false
Yes, back then thousands of years ago everyone traded to get what they are needed.
the answer is Simon de Montfort