- Nails are usually made of metal
- Metal is sometimes magnetic
- Therefore, metal nails are sometimes magnetic

- Metal nails are sometimes magnetic
- A magnet attracts magnetic metals
- Therefore, a metal nail will most likely be attracted to a magnet

So, a metal nail will most likely be attracted to a magnet
[Question]Which object will most likely be attracted to a magnet?
[Context]- A magnet attracts magnetic metals 
- Nails are usually made of metal 
- Metal is sometimes magnetic