Final answer:
In most business contexts, the quorum required for board decisions is a majority of the total number of directors. Option 4.
Step-by-step explanation:
For most business decisions, the quorum, or minimum number of directors necessary to conduct business, is usually a majority(4) of the total number of directors. This requirement ensures that a sufficient number of directors are present to represent the board and make decisions that reflect the interests of the company. Having a majority as a quorum facilitates the decision-making process by allowing a group to conduct business with a number that is more manageable and representative of the whole.