Consider the definition of class called Weird and the given main function, and answer questions to 3. int main () { Weird w1; Weird w2 (20, 30); Weird w3 (w1); w3.set_b (50) ; wl.print (); w2.print (); w3.print (); return 0; class Weird { public: int get_a () const {return a; } const int* get_b () {return b; } void set b (int value) (*b = value; } // constructor with default argument values class de Weird (int x=-99, int y=10) : a (x),c(y), b (&c) { }; void func (const Weird* other); void print () { cout << *b << " ";} private: int a, b, C; }; 1. What is the output of the program: a. 50 30 50 b. 10 30 50 c. 10 30 10 d. None of the above 2. What is the purpose of const keyword in front of argument other in the member function func? a. To prevent moving pointer other to another memory space b. To give a compilation error if func tries to move the pointer other c. To give a compilation error in case that function func tries to change values of the memory space that other points to. d. None of the above 3. What is the purpose of the const keyword in the definition of the member function get_a. Select the best answer. a. To not allow changing its returned value b. To not allow the function to change the value of any of its data members C. To not allow the function to change the value of a only. } d. To not allow the function to change the value of b only. 4. What is the output of the following program: void fun (int n) { cout << n; if (n >= 3) return; fun (n+1); cout << n; a. 12 b. 132 c. 12321 d. 1234 for (int i =0; i < 3; i++) cout << v2.at (i) << " "; 4 are known as e. 12345 5. Consider the following code segment, and select the best answer: vector v1 = {11, 23, 99); vector v2 = {3}; v2 = v1; The output will be: a. 11 23 99 b. 3 23 99 int main () function { s1 += "99"; int y = sl. at (2) - sl.at (4); cout << y; } a. This code gives a compilation error on the second line. b. This code prints 6. c. This code prints -6. d. None of the above fun (1); return 0; } operation in CH CH CH c. 3 d. There will be no output due to improper assignment operation in the third line. 6. Consider the following code segment. Which one of the following statements is true? string s1= "893";