What is the output of this program no 9?

int main()
struct sockaddr_in addr;
int fd;
fd = socket(AF_INET,SOCK_STREAM,0);
return 0;
a) -1
b) 3
c) error
d) none of the mentioned

Submitted by: Murtaza
c) error
The header file netinet/in.h is required to use the structure sockaddr_in.
[root@localhost google]# gcc -o san san.c
san.c: In function 'main':
san.c:7:21: error: storage size of 'addr' isn't known
[root@localhost google]#
Submitted by: Murtaza

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