Three statements are followed by four conclusions number I, II, III and
IV. You have to consider these statements to be true, even if they seem at variance from commonly known facts. Decide which of the given conclusions logically follow(s) from the given  statements. Statements: 1. No plant is a flower 2. No flower is a leaf 3. Some plants are leaves  Conclusions:
I. No leaf is a plant
II. No leaf is a flower
III. Some flowers are plants
IV. All leaves are plants