Which statement best differentiates a meteoroid from a meteor?

Which statement best differentiates a meteoroid from a meteor?

• A. A meteoroid travels through space, a meteor enters the atmosphere.
• B. A meteor travels through space, a meteoroid enters the atmosphere.
• C. Both travel through space and both never enter atmosphere.
• D. A meteoroid becomes luminous in space, a meteor does not.

Answer: (A)