Benefit of Azure Active Directory security groups

You are working with big data in Data Lake Storage Gen2. When doing so, you have decided to use Azure Active Directory security groups instead of assigning individual users to directories and files.

What is the benefit of doing so?

Options

1. Adding or removing users from the group doesn’t require any updates to Data Lake Storage Gen2
2. It ensures that you don’t exceed the maximum number of access control entries per access control list
3. It enables you to access data in a storage account with hierarchical namespace enabled.
4. Both 1 and 2
5. All 1, 2 and 3