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.
Answer: C. Industrial
Explanation: Industrial societies are usually technologically driven and as such are characterized by large production capabilities, requires adequate man power to compensate for the massive output. The technological property of industrial societies allows for rapid pace of discovery, scientific and technological innovation, dense population and usually dominated by large manufacturing, production companies with sophisticated and mechanized tools essential to drive productivity and output. Industrial societies are usually the market center whereby people from various towns and localities look to settle in other to establish and become a dominant force.