A school bus driver works a split shift (morning and afternoon runs with a long mid-day break). How can they meet their daily off-duty time requirement?

1. By taking a single 6-hour off-duty block between the two shifts
2. By taking at least 8 consecutive hours of off-duty time, plus additional off-duty periods of at least 30 minutes that bring the daily total to at least 10 hours
3. By skipping off-duty time entirely as long as they drive fewer than 13 hours
4. By taking all 10 hours of off-duty time in one continuous block only