The answer is true because interest means that you owe someone something so you have to pay more than the amount you had to pay originally and when you get money lent to you regularly, then that is also interest.
One thing that is NOT physical security measure for your home is : Hiding a key outside to ensure family member can get in if they lose their keys
These kind of behavior will compromise your home's security. It will be easy for a criminals to get in if somehow they manage to acquire the information about the location of your outside keys
I don't know how this pertains to social studies, but I do know that in general practice medicine, doctors must use holistic care approaches and techniques to meet the patient's necesites. This includes respect of personal beliefs and religion, cultural diversity, maintaining small relationships with the patients to gain trust and for the patient to cooperate effectively, understanding emotional, mental, and psychical needs, meeting patients on intellectual levels, and it involves a great deal of psychology.