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 Tim are Jack.

No Jack is Ben.

Some Ben is Ruth.

Conclusions:

I. No Ruth is Jack.

II. Some Ben are Jack.

III. No Ben is Tim.