Which of the following statement is correct about the program given below?

 #include 
 static double gDouble;
 static float  gFloat; 
 static double gChar; 
 static double gSum = 0; 
 class BaseOne 
 {   
    public:   
    void Display(double x = 0.0, float y = 0.0, char z = 'A')   
    {        
         gDouble = x;       
         gFloat  = y;      
         gChar   = int(z);      
         gSum    = gDouble + gFloat + gChar;      
         cout class BaseTwo 
 {    
      public:   
      void Display(int x = 1, float y = 0.0, char z = 'A')   
      {       
           gDouble = x;       
           gFloat  = y;      
           gChar   = int(z);     
           gSum    = gDouble + gFloat + gChar;      
           cout class Derived : public BaseOne, BaseTwo 
 {   
     void Show()   
     {       
        cout int main()
 {   
    Derived objDev;   
    objDev.BaseTwo::Display(10, 20, 'Z');  
    return 0;
 }