Q112 Which three statements are true concerning logical and physical database structures?

Q112 Which three statements are true concerning logical and physical database structures? (Choose three.)

• (A). All tablespaces may have one or more data files
• (B). The extents of a segment must always reside in the same datafile
• (C). A smallfile tablespace might be bigger than a bigfile tablespace
• (D). A segment can span multiple data files in some tablespaces
• (E). A segment’s blocks can be of different sizes
• (F). A segment might have only one extent
• (G). Segments can span multiple tablespaces