Which of the following terms best describes the maximum acceptable length of time a system can be non-responsive before it is restored?

Which of the following statements is false?

a. A primitive-type variable can store exactly one value of its declared type at a time. b. Primitive-type instance variables are initialized by default. c. Variables of types byte, char, short, int, long, float and double are initialized to 0. d. Variables of type boolean are initialized to true.

XHTML stands for ____________________ Hypertext Markup Language.

Fill in the blank(s) with the appropriate word(s).