Which motion can be used to interrupt a speaker?

The correct choice is the Point of Order because it is a privileged motion that allows a member to interrupt a speaker, usually to address an issue related to parliamentary procedure or to call attention to a violation of the rules. This motion is vital in ensuring that meetings adhere to established protocols, allowing members to seek clarification or address a procedural concern without waiting for the speaker to finish.

While other options serve specific purposes within a meeting context, they do not provide the same immediate interruption capability. The Motion to Adjourn and the Motion to Recess are typically used to end or pause a meeting, and therefore do not allow for interruption of a speaker. Understanding the role of various motions, including the Point of Order, is crucial for effective participation in parliamentary procedures.