Which definition best matches 'the circular movement around a celestial body'?

• A. revise
• B. a complete cycle
• C. the circular movement around a celestial body
• D. a very important change in the way people act

Answer: (C)

Understanding this term hinges on its use in astronomy to name the path a body follows as it travels around another under gravity. The exact definition “the circular movement around a celestial body” directly captures what orbit means, making it the best fit. It clearly specifies the motion around another object, which is why it’s the precise match here. Other options describe unrelated ideas: revise refers to editing or updating something; a complete cycle is a full repetition in general, not specifically about moving around a body; a very important change in the way people act describes a dramatic behavioral shift, not astronomical motion. In everyday use, remember orbit as the path something takes as it moves around a larger body.