You have a .NET web service named Service1 that performs the following tasks: reads and writes temporary files on the local file system and writes entries to the Windows Application event log. You must recommend an Azure hosting option for Service1 that minimizes both maintenance overhead and cost. Which option do you recommend?

Azure App Service web app is the best choice because it offers a fully managed platform (PaaS), significantly minimizing maintenance overhead. It supports .NET applications and provides a local file system for temporary files and application logging capabilities, fulfilling Service1's requirements. It's also generally more cost-effective than other options for a single web service. Azure Virtual Machine Scale Sets (VMSS) provide IaaS, requiring more maintenance for OS patching, scaling, and management. App Service Environment (ASE) is an isolated and dedicated App Service environment, which is more expensive and complex than needed for a single web service. Azure Functions is a serverless compute service best suited for event-driven, short-running, stateless functions, not a persistent web service that manages its own local files and event logs.