Answer: Option B
Answer: (b)
The word "Metamorphism" comes from the Greek: Meta = change, Morph = form, so metamorphism means to change form.
The process of metamorphism is one that changes or alters either the mineralogy (structure) or the texture, but typically both, of some pre-existing rock. Metamorphic rocks are consequently rocks that have undergone a change or "metamorphosis" from a previous state as a sedimentary, igneous or even another metamorphic rock.