Answer:
d) family systems
Step-by-step explanation:
Family system theory is a concept which states that the family members are connected and thus functions as a system where each member of the family has certain roles and the following rules.
The concept of alcoholism in the family system shows that if a member of the family shows addictive nature to alcohol then its effects are shown on the one or more members of the family thus family system.
Thus, Option-D is the correct answer.