Statements: All chickens are birds. Some chickens are hens. Female birds lay eggs. Conclusions: I. All birds lay eggs. II. Some hens are birds. III. Some chickens are not hens.
Correct Answer: Only conclusion II follows
Explanation:
First Premise is Universal Affirmative (A-type).
Second Premise is Particular Affirmative (I-type).
Some hens are chickens. ↔ All chickens are birds.
I + A ⇒ I – type of Conclusion "Some hens are birds."
This is Conclusion II.