How does a CMS allow more than one person to work on a website at the same time, without the danger of duplicating the work or overriding the work of other people involved in the process? a.
A CMS does not allow multiple contributors to use it at the same time.

b.
A CMS just adds capabilities to a website so it does not matter who is working on the website or when.

c.
A CMS is just another name for a drag-and-drop procedure that anyone can perform without any restrictions.

d.
A CMS allows you to grant access to capabilities such as adding or removing content based on a contributor's role.