Which pricing model will ensure that job completes at the lowest cost?

A company needs to process a large amount of data stored in an Amazon S3 bucket. The total processing time is expected to be less than five hours. The workload cannot be interrupted and will be executed only once.

Which pricing model will ensure that job completes at the lowest cost?

A. EC2 reserved instances
B. EC2 spot block
C. EC2 On-demand Instances
D. EC2 spot fleet.

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