An Organization (Account ID 123412341234) Has Configured the IAM Policy

An organization (account ID 123412341234) has configured the IAM policy to allow the user to modify his credentials. What will the below mentioned statement allow the user to perform?

A) Allow the IAM user to update the membership of the group called TestingGroup
B) The IAM policy will throw an error due to an invalid resource name
C) The IAM policy will allow the user to subscribe to any IAM group
D) Allow the IAM user to delete the TestingGroup