What will be the output of the following C++ code? #include using namespace std; class sample public: sample(int i) : m_i(i) public: int operator()(int i = 0) const return m_i + i; operator int () const return m_i; private: int m_i; friend int g(const sample&); ; int f(char c) return c; int main() sample f(2); cout << f(2); return 0;

Answer: Option B