How many public members does an object of class D have?
Consider the class inheritance.
```
class B
{
public:
B();
B(int nn);
void f();
void g();
private:
int n;
};
class D: public B
{
public:
D(int nn, double dd);
void h();
private:
double d;
};
```
a) 0
b) 1
c) 2
d) 3
e) 4
f) 5
e) 4
With public inheritance, public members of the base class become public members of the derived class.
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