Note the following structures in your database server:<br /> 1.Extents<br /> 2.OS Blocks<br /> 3.Tablespace<br /> 4.Segments<br /> 5.Oracle Data Block<br /> Which option has the correct arrangement of these structures from the smallest to the largest()
A、2,5,1,4,3
B、1,2,3,4,5
C、5,2,1,3,4
D、2,1,5,4,3