Answer: E - Recovery Time Objective (RTO) is the period of time within which a business process must be restored following a disaster. A is a bit of a curveball as it is not required that Joe's people be performing the process. It could be that in event of an emergency, the process would be outsourced to another vendor or partner company.
Key takeaways: With RTO, it doesn't matter how you do it. What matters is that it gets done. Especially in planning for activities where an entire site is unavailable, outsourcing or using another team to assume an activity can be significantly more effective.