Colin Mackay Inc., a software company with its head office in Amsterdam, has employees across three continents. Certain project teams consist of employees based in various regions and require frequent communication and coordination. The teams frequently exchange documents over e-mail, with multiple users making changes to a particular document. As a result, there are often multiple copies of a particular document in existence. Which of the following will allow the teams to share documents in such a way that they can keep track of the changes made to a particular document and note who made what change?

A) blogging
B) shared workspaces
C) instant messaging
D) cross-linking