#include&lt;stdio.h&gt;   #include&lt;pthread.h&gt;    #include&lt;semaphore.h&gt;&nbsp;   sem_t st;   void *fun_t&#40;void *arg&#41;;   void *fun_t&#40;void *arg&#41;   &#123;       printf&#40;&quot;Linux\n&quot;&#41;;       pthread_exit&#40;&quot;Bye&quot;&#41;;       sem_post&#40;&amp;st&#41;;   &#125;   int main&#40;&#41;   &#123;       pthread_t pt;       void *res_t;       if&#40;pthread_create&#40;&amp;pt,NULL,fun_t,NULL&#41; == -1&#41;           perror&#40;&quot;pthread_create&quot;&#41;;       if&#40;sem_init&#40;&amp;st,0,0&#41; != 0&#41;           perror&#40;&quot;sem_init&quot;&#41;;       if&#40;sem_wait&#40;&amp;st&#41; != 0&#41;           perror&#40;&quot;sem_wait&quot;&#41;;       printf&#40;&quot;Sanoundry\n&quot;&#41;;       if&#40;pthread_join&#40;pt,&amp;res_t&#41; == -1&#41;           perror&#40;&quot;pthread_join&quot;&#41;;       if&#40;sem_destroy&#40;&amp;st&#41; != 0&#41;           perror&#40;&quot;sem_destroy&quot;&#41;;       return 0;   &#125;
A. this program will print the only string “Linux”
B. this program will print the only string “Sanfoundry”
C. this program will print both the strings “Linux” and “Sanfoundry”
D. none of the mentioned
Answer:A
#include&lt;stdio.h&gt;   #include&lt;pthread.h&gt;    #include&lt;semaphore.h&gt;&nbsp;   sem_t st;   void *fun_t&#40;void *arg&#41;;   void *fun_t&#40;void *arg&#41;   &#123;       printf&#40;&quot;Linux\n&quot;&#41;;       pthread_exit&#40;&quot;Bye&quot;&#41;;       sem_post&#40;&amp;st&#41;;   &#125;   int main&#40;&#41;   &#123;       pthread_t pt;       void *res_t;       if&#40;pthread_create&#40;&amp;pt,NULL,fun_t,NULL&#41; == -1&#41;           perror&#40;&quot;pthread_create&quot;&#41;;       if&#40;sem_init&#40;&amp;st,0,0&#41; != 0&#41;           perror&#40;&quot;sem_init&quot;&#41;;       if&#40;sem_wait&#40;&amp;st&#41; != 0&#41;           perror&#40;&quot;sem_wait&quot;&#41;;       printf&#40;&quot;Sanoundry\n&quot;&#41;;       if&#40;pthread_join&#40;pt,&amp;res_t&#41; == -1&#41;           perror&#40;&quot;pthread_join&quot;&#41;;       if&#40;sem_destroy&#40;&amp;st&#41; != 0&#41;           perror&#40;&quot;sem_destroy&quot;&#41;;       return 0;   &#125;
A. this program will print the only string “Linux” B. this program will print the only string “Sanfoundry” C. this program will print both the strings “Linux” and “Sanfoundry” D. none of the mentioned
Explanation:The value of semaphore will never become 1 in this program.