User blog:Dr. Nygma 1048/Ferb's real name

I was wondering what Ferb's real name is. I have a couple of ideas. Vote for which one you think it most likely is. Again, vote for  which one you most likely think it is.
 * Ferbooch (no wonder he only goes by Ferb)
 * Ferdinand
 * Ferbinand
 * Ferbgor
 * Ferbert