You must allow access to a storage account (storage1) from selected networks and your home office while minimizing administrative effort. What should you modify first on storage1?

Modifying the Public network access settings is the correct first step because it allows you to configure network rules to restrict access to the storage account. You can specify virtual networks and IP address ranges (like your home office IP) that are permitted to connect, effectively implementing network-based security. This directly addresses the requirement to allow access from selected networks and your home office while minimizing administrative effort compared to more complex solutions. Adding a private endpoint would provide private access but doesn't inherently restrict public access from specified IPs. Selecting Internet routing is a routing optimization, not a security control for network access. Modifying Access Control (IAM) settings controls who has permissions to perform actions on the storage account, not where they can connect from.