This is a question with answer options. Goal: how to roast garlic

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

Available options:
[+] Preheat the oven to 400 degrees F. Slice off the top each head of garlic to expose some of the cloves inside. Place the heads on a piece of foil. Drizzle with olive oil and wrap in the foil. Roast until cloves are lightly browned and tender, about 30 minutes.
[+] Preheat the oven to 125 degrees F. Slice off the top each head of garlic to expose some of the cloves inside. Place the heads on a piece of foil. Drizzle with olive oil and wrap in the foil. Roast until cloves are lightly browned and tender, about 30 minutes....I think the answer is
Preheat the oven to 400 degrees F. Slice off the top each head of garlic to expose some of the cloves inside. Place the heads on a piece of foil. Drizzle with olive oil and wrap in the foil. Roast until cloves are lightly browned and tender, about 30 minutes.