What does the function below do? Select the BEST description.

void foo(char* bar) {

struct stat* stats;

lstat(bar, stats);

if (S_ISLNK(stats->st_mode)) {

char s[PATH_MAX];

int size = readlink(bar, s, PATH_MAX);

s[size] = '\0';

unlink(bar);

link(s, bar);

}

}

a)	Creates a copy of the filename given as bar.

b)	Replaces a soft link with a hard link of the same name.

c)	Deletes a file, leaving behind a dangling soft link.

d)	Creates a hard link with the same name as the original file.