A team estimates only model invocation charges for a production AI business case. Which two additional cost categories should be included? Select 2 answers.

1. Data preparation, integration, evaluation, and ongoing monitoring.
2. The entire unrelated corporate expense base as an AI-specific incremental cost.
3. Only the development team celebration budget.
4. Training and change management for users, plus required human review and support.
5. No additional costs because a managed API operates the whole business workflow.