#include&lt;stdio.h&gt;   #include&lt;unistd.h&gt;&nbsp;   int main&#40;&#41;   &#123;       long int value;       value = sysconf&#40;_SC_CHILD_MAX&#41;;       printf&#40;&quot;%ld\n&quot;,value&#41;;       return 0;   &#125;
A. maximum number of simultaneous processes per user id
B. maximum number of child processes of the current process
C. both (a) and (b)
D. none of the mentioned
Answer:A
#include&lt;stdio.h&gt;   #include&lt;unistd.h&gt;&nbsp;   int main&#40;&#41;   &#123;       long int value;       value = sysconf&#40;_SC_CHILD_MAX&#41;;       printf&#40;&quot;%ld\n&quot;,value&#41;;       return 0;   &#125;
A. maximum number of simultaneous processes per user id B. maximum number of child processes of the current process C. both (a) and (b) D. none of the mentioned
Explanation:None.