Final answer:
The provided information from Section 2 does not specify the delegation of command security officer duties, but in a typical U.S. military structure, such duties would be assumed by the next in the chain of command, possibly the executive officer and a senior enlisted advisor.
Step-by-step explanation:
The duties and responsibilities of a command security officer, in their absence, should be deferred to two individuals. While the information provided from Section 2 does not explicitly state who should take over these duties, in the context of the U.S. military structure, these responsibilities would typically be delegated to the next individuals in the chain of command who can make security-related decisions. However, the options given (A, B, C, D) are not directly related to the structure outlined in Section 2, and therefore, without additional context specific to an organization's protocol, it would be speculative to provide an answer. In a general military context, this might often be the executive officer and a senior enlisted advisor such as the command master chief or a senior chief petty officer.