Grete Samsa, Gregor's sister, most definitely goes through a "metamorphosis" as does every member of the family. Before Gregor's change, Grete is described as a "useless" daughter. She has taken violin lessons, but she isn't very good. She doesn't leave the house often. She is timid and seemingly afraid of the world.
A, c
because it makes sense
The Sorrows want the Lucera, the spiritual leader of the shadowshapers, to become one with them and "set them free." And shadowshapers are humans who can put spirits into the things that they create (art, stories, etc.) and make their creations come to life. But that's just about all we learn
