Regarding the SMC 2.0 organization management function, the following statement is correct?().

After SMC2.0 is installed, a root node is automatically created in the organization with the default name "Root".
The functions of SMC2.0 are based on the organizational structure, and complete business functions are provided within each organizational structure, including user permissions, MCUs, venues, conference templates, conference scheduling, conference control, and
An organization can contain multiple devices, and the same device can be subordinate to multiple organizations.
A user can be assigned to multiple organizations, and users in different organizations can have different permissions.

Answer(s): A,B,C,D