I think it might be sentence 4, since it is not relevant to the wooly mammoth's disappearance.
I think it’s A. That makes the most sense to me. I hope I was helpful
3 (roasting garlic), 5 (steps to boil noodles), 6 (how to cook meat sauce)
An essay on preparing lasagna and meat sauce would read like a recipe, so all of the steps that focus on how to cook, would need to be included.
