please explain how you got the answer

thank you in advance

View Answer Answer: a 3. What is the output of this C code? 1. #include 2. struct point 3. 4. 5. 6. 7. void foo(struct point*); 8. int main() 9. 10. 11. foo (pl) 12. 13. void foo(struct point p[]) int x; int y; struct point pl[] 2, 3, ; 14. printf("M %d ", p->x,ttp->x); 15. 16. a) 12 b) 22 c) Compile time error