The OpenMP critical-section compiler directive is generally considered easier to use than standard mutex locks, because

Complete question

A) management of entry and exit code is managed by OpenMP library reducing the possibility of programming errors.

B) programmers don't need to worry about race conditions.

C) a thread cannot block inside a critical section.

D) deadlock cannot occur.

A. Management of entry and exit code is managed by OpenMP library reducing the possibility of programming errors

Explanation:

This is a multiple choice question and this is the answer because:

1. OpenMp is inclusive of an APL/compiler directives:

2. any code which follows #pragma omp parallel is a parallel region and it is performed by large number of threads that are same as the number of processing cores that are in the system.

3. The critical-section compiler directive acts more like a binary semaphore or mutex lock,it makes sure that only one thread is active in the critical section at the same time.

answer; i believe its compare (b3: b4) ;

this does not make any sense.. i you can reword that i can maybe you