Final answer:
Legitimate power is the form of legitimate power that has widespread social approval and is obeyed because people believe that those who exercise it have a right to do so.
Step-by-step explanation:
The form of legitimate power that has widespread social approval and is obeyed because people believe that those who exercise it have a right to do so is Legitimate power (option d). Legitimate power is power that people accept because it comes from a source that is perceived as legitimate. It is based on the belief that the individuals exercising this power have the right to do so.