The population of Mexico City would most likely be classified as what type of reference question?

• A. Bibliographic
• B. Directional
• C. Ready reference
• D. Technical

Answer: (C)

This question is testing how a simple factual lookup is categorized. A population figure for Mexico City is a straightforward, quick fact that you can retrieve from standard reference sources without needing deep analysis or specialized sources. That makes it a ready reference question—the kind you answer with a concise fact from encyclopedias, almanacs, government statistics, or similar quick-reference tools.

The other types don’t fit as well: a bibliographic question deals with locating sources or details about a publication; a directional question asks for routes or locations; a technical question requires specialized, often field-specific knowledge.