Under what conditions may a driver take a 'reduced weekly rest period' under Article 8(6) of Regulation (EC) No 561/2006?

1. It must be at least 24 consecutive hours, and the reduction must be compensated by an equivalent rest taken en bloc before the end of the third week following the week in question, attached to another rest of at least 9 hours
2. It must be at least 30 consecutive hours, and no compensation is required if taken in Austria
3. It must be at least 24 consecutive hours, and compensation must be taken within 7 calendar days as individual 1-hour extensions to daily breaks
4. It must be at least 20 consecutive hours, and the employer must pay a financial bonus in lieu of time compensation