Answer: (D) Advisory committee
Explanation:
The advisory committee is the type of committee in which the different suggestion, skills are the knowledge are carried out by the individual opinions in an organization.
According to the question, by using the advisory committee we present the problem of the city people to the manager of city so that they listen to our problem and suggest some effective way. The advisory committee basically providing the FDA that suggest or share some special knowledge and advice with the people.
Therefore, Option (D) is correct.