Knowing the nature of backup tapes, which of the following is the MOST RECOMMENDED way of storing backup tapes?

A 'cool dry environment' addresses only basic environmental conditions but does not satisfy the offsite requirement needed for disaster recovery.

Storing tapes inside the same data center, even in a fireproof safe, leaves them vulnerable to the same site-level disasters (flood, power surge, extended fire) that could destroy the primary systems.

Magnetic backup tapes are sensitive to temperature, humidity, and magnetic fields. A climate-controlled offsite facility addresses environmental requirements while ensuring geographic separation from the primary site, protecting data against fires, floods, or other disasters that could destroy both the data center and any onsite storage simultaneously.

A different floor in the same building still exposes the tapes to building-wide disasters such as fire, structural collapse, or flooding, providing no true geographic redundancy.