Single/multi-choice problem: Which of the following solutions is better for the following goal:
To prepare the dutch oven for baking,

Pick your answer from:
(a). put the dutch oven with the lid on into the oven, set the oven to 500F, and preheat for 15 minutes..
(b). put the dutch oven with the lid on into the oven, set the oven to 500F, and preheat for 60 minutes..
(a).