Which of the following types of variables is capable of holding the information contained in a table that has four rows and four columns?

?Extensible Hypertext Markup Language (XHTML) version _____ is an update to HTML 4.01 that provides support for a variety of new features including semantic page elements, column layout, form validation, offline storage, and enhanced multimedia.

A. ?1.0 B. ?1.1 C. ?2.0 D. ?5.0

What is displayed by this program?

``` #include void seven(int *xp); int main(void) { int x, y; x = 5; y = 6; seven(&x); seven(&y); printf("%4d%4d\n", x, y); return(0); } void seven(int *xp) { int y; y = *xp + 2; *xp = y * 3; } ``` a. 21 24 b. 21 8 c. 5 6 d. 5 8 e. none of the above