Consider the following program, which consists of two object modules: 2 void p2(void); 4 int mainO p20 return 0; 1 bar6.c* #include 4 char main; 6 void p2) printf("0x%x ", main); When this program is compiled and executed on an x86-64 Linux system, it prints the string 0x481n and terminates normally, even though function p2 never initializes variable main. Can you explain this