Which pricing options meet these requirements with the LOWEST cost?

Explanations:

Spot Instances offer the lowest cost but are not suitable for long-term commitments, as they can be interrupted by AWS at any time.

On-Demand Instances provide flexibility without commitment but are the most expensive for continuous use.

Reserved Instances provide a lower cost for long-term usage when a commitment is made for 1 or 3 years.

Savings Plans offer flexibility across EC2 and other services with cost savings for long-term commitments.

Dedicated Hosts provide physical server isolation but are generally more expensive and suited for specific regulatory needs rather than cost savings for production instances.