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If a class contains 2 nested class and is being inherited by another class, will there be any multiple inheritance?

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If a class contains 2 nested class and is being inherited by another class, will there be any multiple inheritance?

(a) No, only single level inheritance is used

(b) No, only multilevel inheritance is used

(c) Yes, because 3 classes are involved

(d) Yes, because more than 1 classes are being derived

I have been asked this question at a job interview.

My question is from Multiple Inheritance topic in portion Inheritance & its Types of Object Oriented Programming

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The correct choice is (a) No, only single level inheritance is used

The best I can explain: When a class having nested classes is being derived into another class. It indirectly means a simple class is being inherited to another class. This is single level inheritance.

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