Which AWS resource can help a company reduce its costs in exchange for a usage commitment when using Amazon EC2 instances?

Explanations:

Compute Savings Plans allow companies to commit to a specific amount of usage over a 1- or 3-year term, resulting in significant savings on EC2 costs compared to On-Demand pricing.

An Auto Scaling group is used for automatically adjusting the number of EC2 instances based on demand, but it does not inherently provide cost savings in exchange for usage commitment.

On-Demand Instances are billed at a fixed rate per hour and do not require any commitment, leading to potentially higher costs compared to other pricing models that offer savings for commitments.

EC2 instance store is a temporary storage option for EC2 instances and does not relate to cost-saving mechanisms or usage commitments.