<human>: Here is a goal: How long should I cook butter cookies?

How would you accomplish this goal?

OPTIONS:
- You should bake butter cookies in the oven for 12-15 minutes at 170F
- You should bake butter cookies in the oven for 12-15 minutes at 170C.
<bot>: You should bake butter cookies in the oven for 12-15 minutes at 170C.