Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

Statements:
All fruits are leaves.
Some mangoes are rotten.
All rotten are fruits.

Conclusions:
I. Some leaves are rotten.
II. Some mangoes are fruits.
III. All leaves are either rotten or mangoes.