Which two items should always be locked away separately for safety?

The correct choice emphasizes the importance of safely storing firearms and ammunition to prevent unauthorized access and potential accidents. Locking firearms and ammunition away separately is a critical safety practice, particularly in households with children or guests who may be unfamiliar with gun safety.

By keeping firearms and ammunition in separate secure locations, the risk of a firearm being accidentally discharged or used improperly is significantly reduced. This type of precaution is essential not only for personal safety but also for the safety of others who may come into contact with the stored items.

In contrast, while the other pairings may also warrant some form of storage consideration, they do not present the same level of risk associated with combined access to firearms and ammunition, making this choice the most critical from a safety standpoint.