The essential element that controls how computers are used is a law.

Which of the following statements is true?

a) Function scanf does not return a value. b) You should never check the return value of function scanf. c) You should check the return value of function scanf to ensure that the value it returns matches the number of items that should have been input. d) None of the above.

Which of the following Internet browsing activities might be acceptable to some organizations but not to others?

A) Shopping online during lunch and breaks B) Viewing humorous websites C) Reading news articles during lunch and breaks D) All of the above