A development team needs to rapidly test a new feature in an environment that mirrors production. Which cloud benefit supports this requirement?

Agility is the correct answer because it refers to the cloud's ability to rapidly provision and de-provision resources, allowing development teams to quickly create and tear down environments for testing new features. This speed and flexibility directly support the requirement of rapidly testing a new feature in a production-like environment. High availability ensures continuous operation but doesn't specifically address rapid environment provisioning for testing. Capital expenditure is a financial model, not a cloud benefit related to development speed. Fault tolerance ensures an application remains operational despite component failures, which is different from rapid environment setup.