Answer:
The correct answer is a. Design a descriptive protocol for each spa service including clear delivery standards.
Explanation:
A descriptive study is a type of methodology to apply to deduce a good or circumstance that is being presented; It is applied describing all its dimensions, in this case the organ or object to be studied is described. Descriptive studies focus on collecting data that describes the situation as it is.
The classic descriptive studies are case series studies and prevalence studies.