You have installed anti-virus software on computers at your business. within a few days, however, you notice that one computer has a virus. when you question the user, she says she did install some software a few days ago, but it was supposed to be a file compression utility. she admits she did not scan the file before running it. what should you add to your security measures to prevent this from happening again

Which of the following statements is false? a. a class can directly inherit from class object. b. if the class you're inheriting from declares instance variables as private, the inherited class can access those instance variables directly. c. a class's instance variables are normally declared private to enforce good software engineering. d. it's often much more efficient to create a class by inheriting from a similar class than to create the class by writing every line of code the new class requires.