In a two-lane roundabout you need the left exit but the left lane has an oil patch near entry. What should you prioritize?

1. Follow signs/markings while choosing a legal path and speed that avoids the hazard or delay entry if needed
2. Enter on the oil patch because left exit always requires left lane
3. Ignore markings and cut directly across the roundabout
4. Stop inside the roundabout to inspect the oil