Subscription1 contains a virtual network VNet1 in resource group RG1. User1 currently has Reader, Security Admin, and Security Reader roles at the subscription scope. You need to allow User1 to assign the Reader role for VNet1 to other users. What should you do?

The Owner role grants full access to manage all resources, including the ability to delegate access to others. By assigning User1 the Owner role for VNet1, they gain the necessary permissions to assign the Reader role for VNet1 to other users. The Contributor role allows management of all resources but does not permit assigning roles to others. The Network Contributor role provides specific permissions to manage network resources but also lacks the ability to assign roles. Removing User1 from Security Reader and assigning Contributor to RG1 would not grant the necessary permission to assign roles at the VNet1 scope.