SSC CPO 3 July 2017 Shift 2 Paper

In the question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements.
Statements:
I. Some pens are cups.
II. No cups are plates.
Conclusions:
I. Some pens are not plates.
II. All pens are plates.
III. Some plates are not pens.