In which scenario should Amazon EC2 Spot Instances be used?
A. A company wants to move its main website to AWS from an on-premises web server.
B. A company has a number of application services whose Service Level Agreement (SLA) requires 99.999% uptime.
C. A company’s heavily used legacy database is currently running on-premises.
D. A company has a number of infrequent, interruptible jobs that are currently using On-Demand Instances.
