Most commercial software is distributed under a single-user license that limits use to one person at a time.

The change history includes the name of the person who made the each change, when the change was made, and ________

A) what history was changed B) what data was changed C) what file was changed D) what feature was changed

The client tier interacts with the _______ tier to access information from the ________ tier.

a) middle; information b) information; middle c) information; bottom d) bottom; information