What is the output of the following code?
```
#include
using namespace std;
class Foo
{
public:
int x; // data field
int y; // data field
Foo()
{
x = 10;
y = 10;
}
void p()
{
int x = 20; // local variable
cout << "x is " << x << " ";
cout << "y is " << y << endl;
}
};
int main()
#include
using namespace std;
class Foo
{
public:
int x; // data field
int y; // data field
Foo()
{
x = 10;
y = 10;
}
void p()
{
int x = 20; // local variable
cout << "x is " << x << " ";
cout << "y is " << y << endl;
}
};
int main()
{
Foo foo;
foo.p();
return 0;
}
```
a. x is 20 y is 10
b. x is 10 y is 20
c. x is 20 y is 20
d. x is 10 y is 10
a. x is 20 y is 10
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