Which one of the following would correctly complete the class definition above?

```
Class Matrix {
public:
Matrix() {}
private:
int rows;
int cols;
// Completion goes here
}
```

a. int mat[][];
b. int mat[rows][cols];
c. int mat[][cols];
d. int mat[6][6];

d. int mat[6][6];

Computer Science & Information Technology

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