#include&lt;stdio.h&gt;    #include&lt;sys/types.h&gt;    #include&lt;netinet/in.h&gt;    #include&lt;sys/socket.h&gt;    #include&lt;errno.h&gt;&nbsp;    int main&#40;&#41;    &#123;        struct sockaddr_in addr;        int fd;        fd = socket&#40;AF_UNIX,SOCK_STREAM,0&#41;;        if &#40;fd == -1&#41;            perror&#40;&quot;socket&quot;&#41;;        addr.sun_family = AF_UNIX;        strcpy&#40;addr.sun_path,&quot;san_sock&quot;&#41;;        if &#40;bind&#40;4,&#40;struct sockaddr*&#41;&amp;addr,sizeof&#40;addr&#41;&#41; == -1&#41;            printf&#40;&quot;Sanfoudnry\n&quot;&#41;;        return 0;    &#125;
A. error
B. “Sanfoundry”
C. segmentation fault
D. none of the mentioned
Answer:A
#include&lt;stdio.h&gt;    #include&lt;sys/types.h&gt;    #include&lt;netinet/in.h&gt;    #include&lt;sys/socket.h&gt;    #include&lt;errno.h&gt;&nbsp;    int main&#40;&#41;    &#123;        struct sockaddr_in addr;        int fd;        fd = socket&#40;AF_UNIX,SOCK_STREAM,0&#41;;        if &#40;fd == -1&#41;            perror&#40;&quot;socket&quot;&#41;;        addr.sun_family = AF_UNIX;        strcpy&#40;addr.sun_path,&quot;san_sock&quot;&#41;;        if &#40;bind&#40;4,&#40;struct sockaddr*&#41;&amp;addr,sizeof&#40;addr&#41;&#41; == -1&#41;            printf&#40;&quot;Sanfoudnry\n&quot;&#41;;        return 0;    &#125;
A. error B. “Sanfoundry” C. segmentation fault D. none of the mentioned
Explanation:The structure used for AF_UNIX if sockaddr_un.