What term is a short number you dial to reach a person's office phone directly?

• A. Entry Level
• B. Annual
• C. Phone Extension
• D. Disability Claim

Answer: (C)

To reach someone’s office phone directly, you use a phone extension. An extension is a short internal number assigned to a specific desk or user. When you call the main office line and enter that extension, the system routes your call straight to that person, letting you reach them without dialing a full external number. Extensions are usually just a few digits long.

Other terms don’t fit because they describe unrelated ideas: something like a job level, a yearly measure, or a benefits claim, none of which explain how to connect to a particular office line.