You are the security officer for a small cloud provider offering public cloud IaaS; your clients are predominantly from the education sector, located in North America. Of the following technology architecture traits, which is probably the one your organization would most likely want to focus on$?$

Reducing the recovery time objective $($RTO$)$

Reducing mean time between failure $($MTBF$)$

Reducing mean time to repair $($MTTR$)$

Automating service enablement