PCA (Prometheus Certified Associate) sample exam question with answer 356

Question:
What is the purpose of repeat_interval in alertmanager?

1. How often to space out notifications for each group of alerts
2. How long to initially wait to send a group of alerts
3. How long to wait before sending a notification again if it has already been sent successfully for an alert
4. How often to fire alerts to alertmanager

Answer:
C - correct answer