Which of the following statement is correct about the program given

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

#include  
 class LGArray {    
   int array[3][3];    
   public:     
     LGArray(int arr[3][3] = NULL) {    
       if(arr != NULL) {    
         for(int i = 0; i < 3; i++) {       
           for(int j = 0; j < 3; j++) {  
             array[i][j] = i+j;   
           } 
         }
       }
     }
     void Display(void) {   
       for(int i = 0; i < 3; i++) {  
         for(int j = 0; j < 3; j++) {
           cout<< array[i][j] << " ";    
         }
       }
     }
 }; 
 int main() {   
   LGArray objBA;   
   objBA.Display();   
   return 0;  
 }

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