If XPath is unable to calculate a value because of an error in the style sheet, it will return the text string "NaN" (Not a Number).

An ellipsis following a command name indicates that a ________ will display when you click the command

A) new tab B) File Explorer window C) new command screen D) dialog box

const, dobule, and int are examples of _________.

a. identifiers b. variables c. reserved words d. compiler directives e. program comments