The more extreme the amount of metamorphism, the more difficult it is to tell what the original rock was.

Having read the above passage, choose the right answer to the following question (choices are more extreme or less extreme ):


Evan is picking up rocks on the beach. Some rocks are very basic small ones, and others are large, clumpy stones with different textures. The rocks that are less difficult to identify had amounts of metamorphism that were more extreme or less extreme? 

