Which is the advantage of encapsulation?
a. Only public methods are needed.
b. Making the class final causes no consequential changes to other code.
c. It changes the implementation without changing a class's contract and causes no consequential changes to other code.
d. It changes a class's contract without changing the implementation and causes no consequential changes to other code.
c. It changes the implementation without changing a class's contract and causes no consequential changes to other code.
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