Subscription1 contains VNet1 in RG1. User1 has Reader, Security Admin, and Security Reader roles. What should you do so User1 can assign the Reader role for VNet1 to other users?

The Access Administrator role allows a user to manage user access to Azure resources, including assigning roles. By assigning User1 the Access Administrator role for VNet1, User1 gains the necessary permissions to assign the Reader role for VNet1 to other users. Removing User1 from Security Reader and assigning Contributor to RG1 (or Subscription1) would grant broader permissions than necessary and potentially unwanted access, but wouldn't specifically enable role assignment for VNet1 without the Access Administrator role. The Network Contributor role for RG1 allows managing network resources but does not grant permissions to manage access (assign roles) to those resources.