A driver under assimilated rules has driven for 4 hours 35 minutes without a qualifying break. What should have happened before reaching that point?

1. The driver should have taken a qualifying break no later than 4.5 hours of driving
2. The driver should have changed the tachograph to rest while driving
3. The driver should have taken only 5 minutes at 4 hours
4. No break was needed until 6 hours of driving