PCA (Prometheus Certified Associate) sample exam question with answer 319

Question:
What update needs to occur to add an annotation called description that prints out the message redis server <insert instance name> is down!

- name: redis-alerts
    rules:
      - alert: redis_down
        expr: up{job="redis"} == 0
        labels:
          org: qwerty

1. description: "redis server {{up{job=”redis”}}} is down!"
2. description: "redis server {{.Labels.instance}} is down!"
3. description: "redis server $$.Labels.instance$$ is down!"
4. description: "redis server <.Labels.instance> is down!"

Answer:
B - correct answer