You need to meet the user requirement for Admin1.
What should you do?
A . From the Subscriptions blade, select the subscription, and then modify the Properties.
B . From the Subscriptions blade, select the subscription, and then modify the Access control (IAM) settings.
C . From the Azure Active Directory blade, modify the Properties.
D . From the Azure Active Directory blade, modify the Groups.
Answer: A
Explanation:
Change the Service administrator for an Azure subscription
✑ Sign in to Account Center as the Account administrator.
✑ Select a subscription.
✑ On the right side, select Edit subscription details.
Scenario: Designate a new user named Admin1 as the service administrator of the Azure subscription.
References: https://docs.microsoft.com/en-us/azure/billing/billing-add-change-azure-subscription-administrator