Three statements are given, followed by three conclusions numbered I, II and III.
Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statements:
Some hexagons are rectangles.
Some rectangles are decagons.
All decagons are rhombuses.

Conclusions:
I. Some rhombuses are rectangles.
II. Some rhombuses are hexagons.
III. Some decagons are hexagons.