In an imagined world:
- Some creatures are cruel.
- Humans are one kind of creature.
- It is given that the statement "Some human beings are not cruel creatures" is FALSE.
Which statements can be logically inferred with certainty?
(i) All human beings are cruel creatures.
(ii) Some human beings are cruel creatures.
(iii) Some creatures that are cruel are human beings.
(iv) No human beings are cruel creatures.