This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to roast cauliflower
Purchase a medium head of cauliflower.
Rinse it thoroughly under running water.
Place a baking rack in the center of the oven.

OPT:
* Cover the top of the oven with aluminum foil. Cook one of the leafy leaves inside the foil circles..
* Line the rack with thin baking foil or a cooling sheet. Check the temperature of the oil or butter..
* Preheat your oven to 425 degrees fahrenheit (218 celsius). Pull the leaves off of the base of the cauliflower head..
* Have a light place set aside for the next step. Preheat the oven to 400 f (200 c) and immediately lay a 6-inch baking sheet down..
The answer is:
Preheat your oven to 425 degrees fahrenheit (218 celsius). Pull the leaves off of the base of the cauliflower head.