Direction: In the question below are given four statements followed by four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements: 

I. Some Rat are Echis.

II. Some Cobra are Python.

III. No Echis is Naja as well as Cobra.

IV. No Rat is Python.

Conclusions:

I. All Rat is Cobra.

II. No Cobra is Rat.

III. Some Echis are Python. 

IV. All Rat being Naja is a possibility.