What is state at t=4?

The following C program includes a global variable called time. Since it is declared outside of all functions (on line 3), its scope is the entire file. Notice that time is incremented before each of the functions a, b, and c return. Show the state of the function call stack when time-4 (i.e. at the instant time becomes equal to 4). Each stack frame should show the values of all function arguments and local variables, as well as the line to which execution will transfer when the function returns. If a local variable has not yet been assigned a value at time-4, indicate that fact by stating its value as undef. Assume that the terms in the right hand side of line 19 are evaluated from left to right, i.e. first call a ) then call b () Also determine the program output, and print it on the line below exactly as it would appear on the screen. I.) 2) 3.) 4.) #include int time; int a(int x)( int i; time++; return (i); 10.) int b(int y) int ji 12.) j=y+a (y); 13.) 14.) 15.) 17.) int c(int z)( 18.) 19.) 20.) 21.) 22.) 23.) int main (void) ( 24.) 25.) 26.) 27.) 28.) 29.) 30.) time++ return (j); int k k a(z)+b ( z ); time++; return (k); // first call a() then b () int q, r; time0; q = b(5); rc (2); printf("qsed, rzfd, time-%d ", g, return (EXIT SUCCESS); r, time)