A company's cloud server has recently become unresponsive due to overwhelming e-commerce traffic. Which of the following cloud technologies could be dynamically assigned to mitigate this issue?

High availability ensures continuous operation but doesn't dynamically scale resources based on traffic load.

Shared resources refer to the multi-tenant nature of cloud infrastructure and do not directly address dynamic scaling.

Metered utilization is a billing model based on resource consumption, not a technical solution for performance issues under load.

Rapid elasticity is a core cloud computing characteristic that enables resources to be provisioned and de-provisioned automatically and quickly in response to changes in demand. This allows the cloud environment to dynamically scale up compute resources during traffic spikes, preventing unresponsiveness and maintaining performance for e-commerce traffic.