Which three statements are true regarding views?

Which three statements are true regarding views? (Choose three.)

A.
Views can be created only from tables.

B.
Views can be created from tables or other views.

C.
Only simple views can use indexes existing on the underlying tables.

D.
Both simple and complex views can use indexes existing on the underlying tables.

E.
Complex views can be created only on multiple tables that exist in the same schema.

F.
Complex views can be created on multiple tables that exist in the same or different schemas.

Explanation:
Creating a Sequence (continued)
CYCLE | NOCYCLE Specifies whether the sequence continues to generate values after reaching
its maximum or minimum value
(NOCYCLE is the default option.)
CACHE n | NOCACHE Specifies how many values the Oracle server preallocates and keeps in
memory (By default, the Oracle server caches 20 values.)