Which statement describes internal use of Thru lines on a memo?

• A. External: When one or more offices outside you own must see a memo.
• B. Internal: Requiring chain of command visibility.
• C. Internal: For archiving purposes only.
• D. External: For distribution to all staff

Answer: (B)

Thru lines are used to route a memo through the organization's internal chain of command, ensuring that each level sees and, if needed, approves or acknowledges the document before it proceeds. This keeps the memo within the organization and provides accountability for who has viewed or acted on it. That’s why the internal option describing chain-of-command visibility best fits.

External distribution options describe sending the memo outside the organization or to all staff, which isn’t what thru lines are for. An archiving-only use doesn’t reflect ongoing visibility or approval by the chain of command.