What is the term for dividing a motion to consider its parts separately?

The correct term for dividing a motion to consider its parts separately is "Division of a Motion." This parliamentary procedure allows members to take a complex motion that includes multiple components and separate them for individual consideration. This can be particularly useful when some parts of the motion are agreeable while others are contentious, ensuring that each element is debated and voted upon distinctly. This process promotes clarity and thoroughness in discussions and decision-making.

The other options represent distinct procedures or concepts within parliamentary law. For example, "Rescind" refers to the action of nullifying a previous decision, often requiring a specific majority. "Postpone Definitely" is a procedure used to delay consideration of a motion to a later time but does not involve breaking down the motion into parts. "Subsidiary" motions are those that help manage or manipulate the main motion but do not directly pertain to the division of a motion itself. Each of these serves its own purpose, but none encapsulate the act of dividing a motion for separate consideration like "Division of a Motion" does.