Final answer:
The law requires a minimum of five members to participate if a quorum of five members is necessary for conducting business. A quorum is the minimum number that must be present to carry out official actions, and even if not all vote, they must be available to do so.
Step-by-step explanation:
If a quorum of five members is required to attend any meeting for the purpose of conducting business, it means that the law requires a minimum of five members to participate. A quorum is the minimum number of members of a group that must be present to conduct the group's business. This is not necessarily a majority of all members, but it is the number that is legally required to carry out official actions. For example, if a board has ten members, a quorum might be set at five members. As long as five members are present, the board can make decisions and vote on issues.
According to the information provided, a full majority does not need to vote but must be present and capable of voting. This means that while not all members must actively participate in the voting process, the required quorum must be there to proceed with the meeting's agenda. It should also be noted that each House of Congress has the power to judge the qualifications of its own members and that a majority of each shall constitute a quorum for doing business.