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How to prevent the ClassCastExceptions?

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in Object Oriented Programming by (128k points)
How to prevent the ClassCastExceptions?

(a) By using instanceof

(b) By using is-a check

(c) By using arrow operator with check function

(d) By checking type of conversion

I have been asked this question during an interview.

The above asked question is from Downcasting topic in portion Default Arguments vs Overloading, Upcasting and Downcasting of Object Oriented Programming

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Right choice is (a) By using instanceof

For explanation: The instanceof operator can be used to check the compatibility of the conversion. This has to be done to check whether the casting would be safe or not.

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