?A comment is closed by adding two dashes followed by an exclamation mark and a closing angle bracket.

The tables of information in a relational database are linked or joined to one another by a ________ field.

a. redundant b. relationship c. common d. data

?The Autobytel website allows a customer to purchase a new car without ____.

A. ?paying local excise tax B. ?negotiating its price with a salesperson C. ?needing a credit check D. ?any of the above