Janice wants to throw a big party to celebrate her 21st birthday. As her sister Melanie is a professional event planner, she asks Melanie to do all the arrangements for the party. Which of the following types of social power does Janice's sister exercise over her?
a. Referent power
b. Expert power
c. Coercive power
d. Reward power

Melanie has used "EXPERT POWER " over Janice. Option B is the most correct option.

Explanation: Expert power is the power one uses, because he/she has a more knowledge to perform a particular task over others. It is the power an expert in a job task uses over a manager, to always select him/her to perform that job task. For example, Cristiano Ronaldo is an expert in playing football, this is the power he uses to be the most preferred player by any coach, among his teammates.

Melanie is a professional in event planning, it is assumed she is an expert, this is why her sister Janice has to give her the role, because she is an expert in planning an event.

It is not referent power because Melanie did not ask for the role. It is not coercive power because Melanie did not use force on her, to get the role. It is not reward power because Melanie has not paid her or given anything to make her sister Janice to choose her.

Melanie exercises EXPERT POWER over her sister Janice.

Explanation: Expert power can be defined as the influence believed ny individuals that another individual is extraordinarily capable or more knowledgeable or has a special skill set they do not possess.

Individuals that exhibits expert power has the ability to influence others with their skills and knowledge. Melanie a professonal event planner possess knowledge and skill her sister, Janice do not have. This is an example of expert power.

answer; john stuart mill's principle of utility is your answer; /// good luck