The answer is d
Basically everywhere
Geological change will not cause a mass extinction, because it happens on a too big scale - on the scale of millions of years. During such long time, it is more likely that other causes will influence the survival of extinction of species, such as climate change or environmental disasters, and even if there is a small influence, it would not be significant next to other causes.
Pick b just pick b I know its right I have hade the same one
The hypothesis is the question you are trying to answer or the problem you need to figure out, it is kind of like a starting point
