Which of the following best describes restricted data in the context of classified information?

Restricted data refers specifically to information that is related to the design, manufacture, or utilization of nuclear weapons and certain nuclear materials. In this context, it necessitates special handling and protection due to its sensitive nature and the potential implications for national security. This category of data is not simply general or non-classified; it is subject to stringent regulations and confidentiality requirements to prevent unauthorized access or disclosure.

By being classified as restricted, this data requires that only individuals with appropriate clearances and a specific need to know are allowed access. This measure is critical in safeguarding national interests and maintaining the integrity of classified nuclear-related programs. The necessity for specialized handling underscores the sensitive nature of this information and reflects its significance in the broader context of national defense.