1. In the manual tracing, show the values of the globally declared variables a, b, and c every time their values change. #include int a=0, b=0, c=0; int func1(int x); void func2(int *x, int y); void func3(int x, int *y); void main(){ a =LAST_FOUR_I func3(a, &b); func2(&a, b); b = func1(a); } int func1 (int p) { www } c = p + a; func2(&a, b); return c; void func2(int *x, int b){ } *x*= 2; www b = func3(a, x); int func3(int c, int *n){ c = 2; return ++(*n)**n; 1058 _YOUR_STUDENT_ID % 47; }