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Question

Which class uses hierarchical inheritance in following code?
class A
{
 int a;
};
class B:class A
{
 int b;
};
class C:class A,class B
{
 int c;
};
class D:class A
{
 int d;
};

a.

Class A,B,C

b.

Class B,C,D

c.

Class A,C,D

d.

Class D,A,B

Answer: (d).Class D,A,B

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Q. Which class uses hierarchical inheritance in following code?

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