This answer depends on the city in question.
B is the most all encompassing answer as all other options are examples of a city administrator.
Some cities vest the parks, trails, etc with the Public Works department. Other cities put it under the Director of Parks and Recreation.
Others have a manager for public lands.
I don’t know why it was so successful at that
A portion of the population selected to represent the population is called. statistical inference. Data and Statistics. a census.