The nature of each one's relationship to Sally is what sociologists call a tie.
Explanation:
Strong and weak ties are relevant when socializing in an environment. A strong tie is someone who know you very well and whom you also trust in all endeavors and at all times. Mostly Blood relations form such ties.
Weak ties are the people who establish a relationship for a short period of time. examples are like a train passenger who shares good terms with you and they move in their own way when they reach the destination. A common friend establishes such a relationship who stays with you until the other person is friendly and then they leave.
Memorial Day is a federal holiday in the United States, that is observed on the last monday of May every year. Typically, out of the four seasons, Americans treat it as the beginning of summer.
I believe the answer is: Referent power
Referent power refers to the type of power that can be used to influence an outcome through the interpersonal relationship that an individual has with another. In order for a person to have a referent power, he/she must be genuinely liked or respected by the other person.