Object Oriented Design Which of the following was NOT true about state machines and the State pattern? A. State machines

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Object Oriented Design
Which of the following was NOT true about state machinesand the State pattern?
A. State machines are structured to identify states (the currentsystem context) and transitions (events that may cause statechanges)
B. The current state can should only be maintained inside thestate objects
C. There are several ways to represent states in software:state- and event-centric state machines, table-driven statemachines, and the OO State pattern are examples
D. In the OO State pattern, each state is represented by animplementation of a State interface (or inheritance from a Stateabstract class) that defines the transitions as methods all stateinstances must allow for