The correct answers are 1) the manager oversees the day-to-day operation of the city, and 3) the manager is a professional administrator.
The city manager is selected by the city council of government which is elected by people through the vote. He has the responsibility of advising the council on the decisions made but does not has formal authority to vote on laws passed by the council though, he will be the person who executes them.
According to Kevin Kruse (Nahavandi, A.,2015) a good manager is necessary to plan, measure, hire, fire, coordinate activities among other activities. Though, a manager can be useful on organizing, directing and planning, is desirable. He also becomes a leader, knowing that both notions are not necessarily the same. A leader has long-term and future-oriented perspectives and provides vision to the organization while a manager only has a short-term view and focus on routine matters.
Reference
Nahavandi, A. (2015). The art and science of leadership (7th ed.). Upper Saddle River, NJ: Pearson.