In each question below are given some statements followed by some conclusions. 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:

Some tigers are goats.

No goat is rat.

All dogs are rats.

Conclusions:

I. All rat are tigers.

II. Some rats are not tigers.