Which of the following accurately describes kidnapping?

Kidnapping is specifically defined by the act of taking a person without lawful authority and holding them against their will. This definition captures the essential elements of the crime, which include the unlawful taking of an individual and the subsequent restriction of that person's freedom of movement. The absence of consent is crucial in distinguishing kidnapping from other forms of wrongful confinement or movement.

The other choices do not encompass the full legal definition of kidnapping. For instance, voluntary movement of another person can refer to circumstances where the movement is consensual, and therefore does not meet the criteria for kidnapping. Similarly, abduction with consent does not qualify as kidnapping since the essence of the crime is the lack of consent from the person being taken. Moving someone within their property does not constitute kidnapping either, as it implies that the person remains within their own legal boundaries and is not unlawfully removed from their environment or held against their will. Thus, option C accurately reflects the core principles of kidnapping under Georgia law.