Whenever a variable (or ____ return value) is being compared to the false value (== false), the comparison can be shortened by using the ! operator instead.

Adoption of a _____ solution eliminates the need for multiple communications systems and vendors, which leads to simpler communication processes.

a. peripheral communications b. unified communications c. split communications d. fringe communications

The _____ attribute of the decimal-format element represents text used to represent entries that are not numbers.

A. ?minus-sign B. ?zero-digit C. ?pattern-separator? D. ?NaN