What is meant by the strong mayor-council form?

A. a gradual change in property ownership with wealthier people buying property and moving into neighborhoods, leading to the revitalization of the area
B. a form of local government in which the voters directly elect the city council and the mayor, who enjoys nearly total administrative authority
C. a city "constitution" that outlines the structure of city government, defines the authority of the various officials, and provides for their selection
D. a form of local government in which the city council hires a professional administrator to manage city affairs
E. a form of local government in which the members of the city council select the mayor, who then shares power with other elected or appointed boards and commissions

B