Process management: Consider the following program named fork.c

Can someone explain to me what the answer is and how it is found based off the code? My C is really rusty. Thanks.

#include #include #include int a0; void main (void) int i-1; a++i sprintf (buf, "A %d ", a) write (1, buf, strlen (buf)) fork ) sprintf (buf, "B &d ", a); write (1, buf, strlen (buf)) fork ); at+i sprintf (buf, "C %d ", a) write (1, buf, strlen (buf) 6. In the print trace (output string) what number is following 'A'? A. 0 13. 1 C. 2 D. 3 Answer Dr if you come up with a different