Final answer:
In the mayor-council system, legislative and executive responsibilities are separated; the mayor has executive authority, and the council handles legislative tasks.
Step-by-step explanation:
The question appears to be about the mayor-council system, which is a form of municipal governance. In this system, the correct answer to the question provided is:
A. legislative and executive responsibilities are separated, This means that the mayor has executive authority while the legislative responsibilities rest with the council. The mayor does not chair the city council in a mayor-council system, and the city council does not select the mayor; citizens typically elect the mayor in a separate electoral process from the council members. This separation allows for a clear distinction in roles and responsibilities.