Consider the Following Class Definitions: Which of the Following Correctly

Consider the following class definitions: Which of the following correctly sets the values of x and y?

A) void dClass::setXY(int a, int b)
{
bClass::setX(a) ;
y = b;
}
B) void dClass::setXY(int a, int b)
{
x = a;
y = b;
}
C) void dClass::setXY(int a, int b)
{
x = bClass::setX(a) ;
y = bClass::setY(b) ;
}
D) void dClass::setXY(int a, int b)
{
x = bClass.setX(a) ;
b = y;
}