Which principle of Parliamentary Law emphasizes that only one item should be addressed at a time?

The principle that emphasizes handling only one item of business at a time is known as Orderliness. This principle is fundamental in Parliamentary Law because it ensures that meetings remain structured and effective. By addressing one item at a time, participants can focus their attention on discussing and deliberating that specific issue without distractions, leading to clearer decision-making. This practice prevents confusion and chaos during discussions, allowing for more organized and productive meetings. It is crucial for maintaining decorum and ensuring that all voices are heard on an issue before moving to the next agenda item.