Which of these options is the most secure procedure for storing backup tapes?

An effective disaster data recovery strategy should consist of producing backup tapes and housing them in an offsite storage facility. This way the data isn’t compromised if a natural disaster affects the business’ office. It is highly recommended that the backup tapes be handled properly and stored in a secure, climate controlled facility. This provides peace of mind, and gives the business almost immediate stability after a disaster.

References: http://www.entrustrm.com/blog/1132/why-is-offsite-tape-storage-the-best-disaster-recovery-strategy