Which of the following code snippets results in a memory leak? void StudentClass () \{ int ptr = new int (3); \} int main() \{ StudentClass(); return 0; int main() \{ StudentClass(); delete StudentClass(); return ; \} int main() \{ StudentClass* student1 = new StudentClass; StudentClass* student 2 = new StudentClass; StudentClass* student 3; student 3= student 1; student 1= student 2; return ; int main() \{ StudentClass* student1 = new StudentClass; StudentClass* student 2 = new StudentClass; delete student1; student1 = student 2; return 0; \} Given the heap region starts at 9400 , the stack region starts at 3200 , what is the value of the integer variable myAge at position 1 ? using namespace std; int a=16; int main(){ int b; int: myAge = nullptr; b=29 myAge = new int; // Position 1 *ryAge =30; delete myAge; ) Question 6 Which XXX will result in a destructor being called? int main(){ xox 1 ist. append(1); cout s "Exiting main" end1; return 0; \} LinkedList 1 ist; LinkedList 1ist = new LinkedList ()