Four Users Have Placed Their Documents in a Local Shared

Four users have placed their documents in a local Shared Documents folder. They want to be able to have the necessary permissions to read, write, and manage all files and folders in Shared Documents. Currently, they have Full Control permission only on the files and folders that they place in Shared Documents. Which of the following should you do to enable what they wish?

A) Modify the permissions on Shared Documents so that the Users group has Change permission and Read permission.
B) Instruct each user to modify the permission on the folders they create so that the Owner user has Full Control permission.
C) Instruct each user to modify the permission on the folders they create so that the Owner user has Change permission and Read permission.
D) Modify the permissions on Shared Documents so that the Users group has Full Control permission.