What is the minimum number of members required for a quorum in a seven-member board?

In a seven-member board, a quorum is the minimum number of members that must be present to conduct official business. The common practice for determining a quorum in most decision-making bodies is to have a majority of the members present. Since there are seven members on the board, the majority would be calculated as follows:

A majority is more than half, so for a seven-member board, half would be 3.5. Since you cannot have a fraction of a person, you round up to the next whole number, which is four. Thus, at least four members must be present for the board to be able to make decisions or take action.

This calculation reinforces why the correct answer is four members. The other numbers provided in the choices do not meet the majority requirement. For example, having three members would not constitute a majority and would therefore not be sufficient for a quorum, similarly with five and six members, which, while they can conduct business if at least four are present, do not meet the requirement for the minimum quorum for the whole seven-member board.