Answer: Subscription Owner

User1 is the Owner of the subscription, meaning they inherently have full control over all resources within that subscription, including VM1. User3 is explicitly assigned the owner role for VM1. Therefore, both User1 and User3 can be considered for Box1, but User1 has an overarching ownership due to their subscription-level role. The other roles do not grant full control over the subscription or VM1. User2 is owner of RG2, which does not encompass VM1, and User4 is a Contributor for RG1, which does not include the permissions required for full ownership of VM1.

Author: LeetQuiz Editorial Team