Please I need someone to solve C programming ASAP

Which of the following are ghobal varables? -includesstdio.h? void func_1(); void func_2(); int a,b=10 int main() printf("Global a = \$dinn", a); func_1(); func_2(); func_1(); return 0; \} void func_10) \{ printf("From func_10) Global a =$d , a); J printf("From func_1() Global b = \$d (n|n", b); void func_2() int a=5; b printf("Inside func_ 2() a =9dn,a)