You need to change the parent group of Security2 to be Security3

You have a Microsoft Intune subscription.
You have three security groups named Security1, Security2 and Security3. Security1 is the parent group of
Security2. Security2 has 100 users.
You need to change the parent group of Security2 to be Security3.
What should you do first?

A.
Edit the properties of Security1.

B.
Edit the properties of Security2.

C.
Delete security2.

D.
Remove all users from Security2.