An application server, which uses a SaaS fax provider, is determined to cost too much money. An upgrade to the application allows for use of a physical fax card so the company only has to pay for a phone line. This is a production application; therefore, downtime must be minimized. Which of the following types of migration is MOST efficient in facilitating this application upgrade?
A. Virtual-to-physical migration
B. Storage migration
C. Cloud migration
D. Offline migration
