Answer: C) the principle of lesser interest
Explanation: Principle of less interest is defined as party or person who has less amount of interest in any relationship continuity has the power over that relation .It can be seen in organization field, personal relationships etc.
According to the situation mentioned in the question,Principle of lesser is depicted .As for other roommate, he has other options apart from compulsorily living togather with his/her roommate. He also has the power in relationship than other one.
Other options are incorrect because control in behavior, Intimate violence is form of domestic violence.Principle of greater option is having numerous options to choose from in a situation.
Thus, the correct option is option(C).