A small team wants to spend less time on infrastructure maintenance and more time on features that differentiate its business. Which TWO choices generally support this goal? Select TWO.

1. Assume managed services remove all customer security responsibilities.
2. Maintain every physical server and hypervisor directly.
3. Require the team to build its own replacement for every AWS service.
4. Use managed database services for suitable database workloads.
5. Use serverless functions for suitable event-driven processing.