Answer: A. Cold site
Explanation: Cold site is a backup site or a disaster recovery site.
Disaster Recovery Site: It is a part of disaster recovery plan in which an organisation. Its a location or a secondary site which an organisation uses to relocate and resume its IT framework, data and major operations in case of a system failure by natural disaster or threats etc. This secondary site keeps providing with the services till the main location reinstates. the main types are cold site warm site and hot site.
Cold Site: