A company has three distinct teams with different needs for leveraging generative AI on Google Cloud: The Research Team needs full control over the operating system and specific NVIDIA driver versions on their virtual machines to test experimental AI frameworks. The Application Team wants to focus only on their Python code for a custom model, letting Google manage the underlying OS, scaling, and infrastructure. The Marketing Team wants a ready-to-use tool to help them draft emails directly within their existing email client, with no coding required. Which set of Google Cloud services correctly maps to the IaaS, PaaS, and SaaS models that fit each team's needs?