Your question is Cloud Service Model Differences. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You're speaking with a client that is planning a cloud modernization program and needs a clear way to think about different service models before making architecture and sourcing decisions. Leadership wants a simple strategic explanation of where responsibility sits and when each model makes sense.
Can you explain the differences between PaaS, IaaS, and SaaS?