Which of the following statements a$),$ b$)$ or c$)$ is false?

Question $19$ options:

Unfortunately, existing code will break if you update the class's implementation details$$that is$,$ the internal data representation or how its method bodies are implemented.

If Python programmers follow convention and do not access attributes that begin with leading underscores, then class designers can evolve class implementation details without breaking client code.

When you design a class, carefully consider the class's interface before making that class available to other programmers.

All of the above statements are true.