Final answer:
Without additional context, it's impossible to give a specific set of options for Ruvola when only 20 minutes of fuel remain. Ruvola could be associated with many types of transportation or applications that use fuel.
Step-by-step explanation:
The question about what options Ruvola has when he has 20 mins of fuel left is incomplete as it lacks context regarding who or what Ruvola is.
We need additional information to determine if Ruvola is associated with a vehicle, aircraft, spacecraft, or any other context where fuel considerations would be necessary to make an informed decision. In general, someone with limited fuel might consider finding the nearest location to safely stop and refuel, land, or dock, depending on the mode of transportation.
They could also consider sending out a distress signal or contacting a control center for assistance if it's an emergency situation.