Which two statements correctly describe the relation between a data file and the logical database structures? (Choose two)
A.
An extent cannot spread across data files.
B.
A segment cannot spread across data files.
C.
A data file can belong to only one tablespace.
D.
A data file can have only one segment created in it.
E.
A data block can spread across multiple data files as it can consist of multiple operating system (OS) blocks.