<human>: Goal: To light a campfire.

Which of the following methods is more reasonable for accomplishing this goal?

OPTIONS:
- Grab your lighter and light a green leaf to start the fire that will keep your and your camp warm.
- Grab timber and vigorously rub a stick against a rock to create smoke and start a small kindle.
<bot>: Grab timber and vigorously rub a stick against a rock to create smoke and start a small kindle.