The elements of electrical power, water, and fire are components of physical security.
In the field physical security, these elements help in safeguarding a facility or environment. Electrical power is important for powering security systems such as surveillance cameras, access control systems and alarms. This ensures their continuous operation to monitor and protect against potential threats.
Water is relevant in the context of fire suppression systems because it is often used as a fire suppression agent in sprinkler systems to control and extinguish fires. The fire is a significant concern in physical security and various fire prevention and detection measures are employed to mitigate the risk of fire-related incidents that could compromise the security of a location.
Therefore, the Option A is the most closest.