You manage a payment-processing Deployment with an HPA targeting 60% CPU. During flash sales, the app receives sudden traffic spikes, but you observe that pods are added too aggressively — jumping from 4 to 40 replicas in a single scaling event, overwhelming the downstream database. You want the HPA to add at most 4 pods every 60 seconds regardless of how high the metric spikes. Which HPA configuration achieves this?