Which option has the correct arrangement of these structures from the smallest to the largest?

Note the following structures in your database server:
1. Extents
2. OS Blocks
3. Tablespace
4. Segments
5. Oracle Data Block
Which option has the correct arrangement of these structures from the smallest to the largest?

A.
1,2,3,4,5

B.
2,5,1,3,4

C.
5,2,1,3,4

D.
2,1,5,4,3

E.
2,5,1,4,3