What is wrong with this code?

```
class Square
{
private:
int side = 4;
public:
Square() {side = 4;}
void SetSide(int s) {side = s;}
};

```

A. Nothing is wrong with the code.
B. side can’t be initialized in the set.
C. side can’t be initialized in the private section.
D. no need to initialize in the constructor because it is initialized in the private section.

C. side can’t be initialized in the private section.