The prefix out- indicates which meaning?

• A. External
• B. Blocking
• C. All
• D. Evil, bad

Answer: (A)

The prefix out- signals outward or external, moving from inside toward the outside. It often creates words that describe something on the exterior or beyond the interior, like outside, outdoor, or outward. That sense matches the meaning “external,” making it the best fit. The ideas of blocking, totality, or moral quality aren’t conveyed by this prefix in the same way, so they don’t apply.