What is the output of this program?#include <iostream>

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What is the output of this program?

#include <iostream>
    #include <set>
    using namespace std;
    int main ()
    {
        set<int> SetData;
        SetData.insert(25);
        SetData.insert(15);
        SetData.insert(45);
        SetData.insert(35);
        SetData.insert(55);
        while (!SetData.empty())
        {
            cout << ' ' << *SetData.begin();
            SetData.erase(SetData.begin());
        }
        return 0;
    }

1. 15
2. 15 25
3. 15 25 35
4. 15 25 35 45
5. 15 25 35 45 55

Correct Option: E

In this program, We used the set template and then we are initializing the values and then we are erasing it.