Knowledge: Vocabulary
Explain:
A. by (prep): by
B. in (prep): in
C. with (prep): with
D. of (prep): of
=> Cluster: in origin: origin
Both Mount Fuji and its lakes are volcanic (50) print origin, and that is probably why traditional stories say that Mount Fuji appeared overnight; and, for the same reason, it may one day disappear just as suddenly.
=> Both Mount Fuji and its lakes are of volcanic origin, and that is probably why legends say that Mount Fuji appeared overnight; and, for the same reason, it might one day disappear just as suddenly.
Choose B.