Two 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 statement

Statements :

No tree is a plum.

All pomegranates are trees.

Conclusions :

I. No pomegranate is a plum.

II. No plum is a tree.

III. Some trees are pomegranates.