How do Regin’s transformation and tales help build the plot? A. Siegfried is inspired to learn to play music as well as Regin does. B. It makes Siegfried determined to perform small errands to prove himself worthy. C. Siegfried is inspired to prove himself worthy to rule over the land of his forefathers. D. Siegfried decides Regin is the only one who can help him rule over the land of his forefathers.