Question 8: Questions 8 - 12 are based on the following code. Now, this code results in a compile error (where it's marked "here"). Why? class Fraction { private:   int numerator;   int denominator; public:   Fraction(int n, int d) {     numerator = n;     denominator = d;   }   void display() { cout << numerator << "/" << denominator << endl; } }; int main() {   Fraction f;  // <-- here   return 0; } Group of answer choices There is no constructor defined Copy constructor is undefined Default constructor is undefined Constructor is defined as public   Question 9:   Find an incorrect definition of getter/setter for Fraction. Group of answer choices void setNumerator(int n) { numerator = n; } void getNumerator() { return numerator; } void setDenominator(int d) { denominator = d; } int getDenominator() { return denominator; }   Question 10:   What would be the printout of the following code segment? Fraction f(2, 3);  f.display(); Group of answer choices 23 2 3 2,3 2/3   Question 11:   Suppose I added the following copy constructor to Fraction. Which statement will invoke this method? Fraction(const Fraction& b) {   denominator = b.denominator;   numerator = b.numerator; } Group of answer choices Fraction f(2, 3); Fraction g = f; Fraction h; Fraction* j = nullptr;   Question 12:   Suppose I added the following overloaded operator method to Fraction. Which statement will invoke this method? Fraction operator+(const Fraction& b) {     Fraction o;     o.denominator = denominator * b.denominator;      o.numerator = numerator * b.denominator + b.numerator * denominator;      return o; } Group of answer choices Fraction f(2, 3); Fraction g = f; Fraction h; Fraction h = f + g;