6 Following code contains function called Count which is ensuring the consistency of shared data cnt. Assume that Count function can be called by several of thread and doesn't allow cnt become in inconsistent state. Write pthread_mutex_lock and pthread_mutex_unlock functions into critical sections of following code. of tion #define NITER 1000000 pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; int cnt = 0; void * Count(void 23 a) int i, tmp