I am going to say door number two. A lion wouldn't survive being starved for a year, so it should be safe.
If not 2 then 3 because the fire is that of a lit candle.
A riddle! You come across 3 doors 🚪. Behind door number one is a killer. Behind number two is a lion that has been starved for a year. Behind door number three is a fire. Which door is the best choice so that you can survive?