The correct answer is Confidentiality.

Confidentiality means protecting information from unauthorized access and disclosure. It is one of the three core principles of the CIA model, and it emphasizes that only authorized parties should be able to read or obtain the data.

Configuration is incorrect because that term refers to system settings and setup and not to the C in the CIA triad which stands for the secrecy of information.

Control is incorrect because controls are mechanisms or safeguards used to enforce security but the CIA letters represent security objectives and not the measures used to achieve them.

Compliance is incorrect because compliance concerns meeting laws, regulations, and standards and it is not the concept represented by the C in the CIA model.

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