Which of the following officers is selected by the board among its members?

The chairman is an essential role within the board, as this position is responsible for leading meetings, setting agendas, and ensuring that discussions stay productive and focused. The chairman typically helps guide the board’s decisions and represents the board in various official capacities. By being selected among the board members, the chairman is often someone who has experience and knowledge about the board's operations, which enables them to facilitate discussions effectively.

In contrast, the president and treasurer roles may have different selection processes or responsibilities that don’t necessarily involve being chosen from among the board members. The executive director is usually a staff position rather than a board member, focusing on the operational management of the organization rather than the governance and oversight functions typical of board members.