Exam AWS Certified Cloud Practitioner topic 1 question 727 discussion

C. Economies of scale "Benefit from massive economies of scale – By using cloud computing, you can achieve a lower variable cost than you can get on your own. Because usage from hundreds of thousands of customers is aggregated in the cloud, providers such as AWS can achieve higher economies of scale, which translates into lower pay as-you-go prices." https://docs.aws.amazon.com/whitepapers/latest/aws-overview/six-advantages-of-cloud-computing.html

C. Economies of scale refer to the cost advantage experienced by a company when it increases its output. The same principle applies to AWS since it has a large user base that generates significant demand for cloud computing resources. AWS can take advantage of this by purchasing and operating resources in bulk, which results in lower costs per unit. AWS passes these savings on to customers in the form of lower prices, making it an attractive option for companies looking to optimize their usage costs.

The benefit of the AWS Cloud that helps companies achieve lower usage costs because of the aggregate usage of all AWS users is "Economies of scale"