What is the output of the following code? #include using namespace std; int main() { int matrix[4][4] = {{1, 2, 3, 4}, {4, 5, 6, 7}, {8, 9, 10, 11}, {12, 13, 14, 15}}; int sum = 0; for (int i = 0; i

What is the output of the following code?

#include using namespace std;
int main()

{
       int matrix[4][4] =

          {{1, 2, 3, 4},

          {4, 5, 6, 7},

          {8, 9, 10, 11},

          {12, 13, 14, 15}};
      int sum = 0;
       for (int i = 0; i < 4;="">

       cout < matrix[i][1]="">< "="">
return 0;

}