Answer: Elasticity

**Elasticity** is the correct answer because it specifically refers to the cloud's ability to automatically scale resources up or down based on demand. This allows organizations to: - **Acquire resources as needed**: Scale up during peak usage periods - **Release resources when no longer needed**: Scale down during low usage periods - **Pay only for what you use**: Avoid over-provisioning and reduce costs **Why other options are incorrect**: - **Economies of scale**: Refers to cost advantages from AWS's large-scale operations - **Agility**: Refers to the speed of deploying and managing resources - **Security**: Refers to AWS's security measures and compliance capabilities Elasticity is a core cloud computing benefit that enables organizations to respond dynamically to changing workloads without manual intervention.

Author: Ritesh Yadav