PCA (Prometheus Certified Associate) sample exam question with answer 401

Question:
What does the following config do?

scrape_configs:
  - job_name: "example"
    metric_relabel_configs:
      - source_labels: [team]
        regex: (.*)
        action: replace
        target_label: organization
        replacement: org-$1

1. renames the organization label to team and the value of the label will get prepended with org
2. the team label will get dropped
3. renames the team label to orginization and the value of the label will get prepended with org-
4. Targets with label team will get scraped, all other targets will be dropped

Answer:
C - correct answer