A canary shows normal HTTP success but checkout completions fall. Which monitoring choices best protect the release decision? Select 2 answers.

1. Remove customer-outcome metrics because they can disagree with server CPU.
2. Approve the release based only on the deployment tool reporting completion.
3. Monitor representative business outcomes such as successful checkout completion in addition to infrastructure errors.
4. Use suitable synthetic or real-user validation and compare against a meaningful baseline during rollout.
5. Treat every HTTP 200 as proof that a payment and order completed correctly.