IT Solutions Express (ITSE) Is a Database Service Firm in an Area

IT Solutions Express (ITSE) is a database service firm in an area prone to tornadoes. Because ITSE stores critical data, they have a hot backup site for systems and data. As part of ITSE's disaster recovery plan, they need a plan that allows key personnel to resume work offsite within 4 hours if a tornado happens to strike their main facility. What kind of disaster recovery plan is necessary to meet the business requirements of ITSE?

A) Alternative backup site plan
B) Backup team plan
C) Alternative operations site plan
D) Backup direction site plan