The correct answer is B, as it describes the information security element that was described in the above scenario. Non-repudiation is an information security element that ensures that a party cannot deny sending or receiving a message or performing an action. In the above scenario, non-repudiation was described, as Kayden could not deny company's message, and company could not deny Kayden's signature. Option A is incorrect, as it does not describe the information security element that was described in the above scenario. Availability is an information security element that ensures that authorized users can access and use information and resources when needed. In the above scenario, availability was not described, as there was no mention of access or use of information and resources. Option C is incorrect, as it does not describe the information security element that was described in the above scenario. Integrity is an information security element that ensures that information and resources are accurate and complete and have not been modified by unauthorized parties. In the above scenario, integrity was not described, as there was no mention of accuracy or completeness of information and resources. Option D is incorrect, as it does not describe the information security element that was described in the above scenario. Confidentiality is an information security element that ensures that information and resources are protected from unauthorized access and disclosure.In the above scenario, confidentiality was not described, as there was no mention of protection or disclosure of information and resources.
References: , Section 3.1