On a normal 9-hour driving day you have already driven 4 hours 30 minutes and have taken no break. What must you do next, and how much driving can remain after that?

1. Drive another 4 hours 30 minutes immediately, then rest 11 hours
2. Take a break of at least 45 minutes (or complete a lawful 15-then-30 split); then at most 4 hours 30 minutes more driving that day
3. Drive 10 hours because every day may be extended
4. Switch to rest on the tachograph while rolling to the next exit