Which cloud benefit enables building, testing, and deploying an app in hours?

Agility is the correct answer because it refers to the ability to rapidly develop, test, and deploy applications and services. Cloud computing provides the tools and infrastructure that allow organizations to quickly respond to changing business needs and market demands, enabling rapid iteration and deployment cycles. Disaster Recovery focuses on restoring operations after a catastrophic event, not rapid development. Elasticity is the ability to automatically scale resources up or down based on demand, which is a component of agility but not the overarching benefit described. Fault Tolerance ensures an application continues to operate despite component failures, which is about reliability, not speed of development and deployment.