A ___________ is a section of a program that is written once, and can be used multiple times by calling the subroutine from any point in the program.

What attribute about an X server allows you to change the appearance of an X application without having to modify the program?

What will be an ideal response?

?A program's ____ is the order in which various parts of the program run, or execute.

A. ?logic B. ?syntax C. ?call stack D. ?console