You create a new Cisco Unity Connection user based on a custom template that configures the user's maximum voice mail message length to 500 seconds.
Your supervisor informs you that the voice mail message length limit should be changed to 300 seconds.
You should complete your task by using the least administrative effort.
Which of the following should you do?
- A: Modify the user template to automatically reconfigure all existing users.
- B: Modify the user template, and manually reconfigure existing users one by one.
- C: Modify the user template, and use the BAT to update existing users.
- D: Modify the user template, and manually reconfigure existing users in Bulk Edit mode.