Fact 1: All chickens are birds.nFact 2: Some chickens are hens.nFact 3: Female birds lay eggs.nIf the first three statements are facts, which of the following statements must also be a fact?nI: All birds lay eggs.nII: Some Hens are birds.nIII: Some chickens are not hens.

• A. I only
• B. II only
• C. II and III only
• D. None of the statements is a known fact.