Which of the following statements is true when a derivation inherits both a virtual and non-virtual instance of a base class ?

A) Each derived class object has base objects only from the non virtual instance
b) Each base class object has derived objects only from the non-virtual instance
c) Each derived class object has base objects only from the virtual instance
d) Each derived class object has a base object from the virtual instance and a base object from non-virtual instance.

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