Context: But after several seconds , the fire runs out of stick , and all what 's left is a teeny tiny burnt piece of wood . If that matchstick was my life , then I can say , " Wow , checkit ! Look at my fire ! I ' m so cool and stuff ! "

Question: Why did the fire burn out ?
Options:
0. It was tired of life .
1. It wanted to burn out .
2. Fire need material and oxygen to exist , and it ran out of material to leach life off .
3. It did n't want to exist anymore .
Answer: 2