What will be the output of the following C++ code?

#include <iostream>
using namespace std;
const int limit = 4;
class safearray
{
    private:
    int arr[limit];
    public:
    int& operator [](int n)
    {
        if (n == limit - 1)
        {
            int temp;
            for (int i = 0; i < limit; i++)
            {
                if (arr[n + 1] > arr[n])
                {
                    temp = arr[n];
                    arr[n] = arr[n + 1];
                    arr[n + 1] = temp;
                }     
            }  
        }
        return arr[n];
    }
};
int main()
{
    safearray sa1;
    for(int j = 0; j < limit; j++)
        sa1[j] = j*10;
    for(int j = 0; j < limit; j++)
    {
        int temp = sa1[j];
        cout << "Element " << j << " is " << temp;
    }
    return 0;
}

A. 0102030

B. 1020300

C. 3020100

D. error

Answer: Option A