Which of the following is considered sensitive information?

Proprietary business information is classified as sensitive information because it pertains to the unique data, processes, or practices owned by a company that gives it a competitive advantage. This type of information is typically protected by law, reflecting the company's investment in its development and the potential harm that could arise if it were accessed or disclosed without permission. Unauthorized exposure of proprietary business information could result in financial loss, damage to reputation, or erosion of competitive positioning in the market.

Other categories such as publicly available information, general guidance documents, and open-source intelligence, while they may be valuable, do not generally require the same level of protection as proprietary business information. Publicly available information is accessible to anyone, general guidance documents often contain non-sensitive information intended for wide distribution, and open-source intelligence typically involves gathering information from publicly accessible sources, which does not inherently contain proprietary or sensitive content. Thus, these other options do not meet the same criteria for sensitivity as proprietary business information does.