Design a finite state machine that keeps track of whether the number of 1's that have been received on its input 'i' is an odd number. The output 'o' is initialized as 0, but should be 1 after receiving an odd number of 1's from the input.

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.