Please elaborate on how you figured out the solution for each subQuestion! I already have the answers, just need clarification on how/why each answer is considered correct. :)

Answers: (Please help explain how each answer is correct!)

23) B

24) C

25) A

# Figure 5 const char* msg[] = { "AAA", "BBB ", "CCC ", "DDD ", "EEE ", "FFF " }; void* subvoid* arg) long n = (long) arg; sleep 5-n ); write( 2, msg[n], 4); pthread_exit ( arg ); int main () pthread.t tid[4]; long i - 0; write( 2, msgli], 4 for (i-0; 4; i++) ) &tid[1], tid[1], (void*) pthread_create( pthread-join ( NULL, sub, ); for (i-0; 4; i++) write( 2, msg[il, 4 return 0; NULL ); 23. Consider the c/c++ program shown in Figure 5 What is the affect of executing the "for" statement containing the call to function "pthread_join"? A) It will call function "sub" four times B) It will force function "main" to wait until four threads return, C) It will attach four threads to the current process. D) It will create one process out of four threads. E) None of the above. 24. The C/C++ program shown in Figure 5 is executed on a Linux system with two CPUS How many unique process ID numbers and thread ID numbers are generated when the program is executed? A) Two process ID numbers and five thread ID numbers B) Two process ID numbers and four thread ID numbers C) One process ID number and five thread ID numbers D) One process ID number and four thread ID numbers E) None of the above 25. The C/C++ program shown in Figure 5 is executed on a Linux system with two CPUs What will be displayed by the program? A) AAA DDD CCC BBB AAA EEE B) AAA DDD CCC BBB AAA AAA C) AAA AAA BBB CCC DDD EEE D) AAA AAA BBB CCC DDD AAA E None of the above