Fact 1: All chickens are birds.Fact 2: Some chickens are hens.Fact 3: Female birds lay eggs.If the first three statements are facts, which of the following statements must also be a fact?I: All birds lay eggs.II: Some Hens are birds.III: Some chickens are not hens.

one of the statements is a known fact.

Fact 1: All chickens are birds.Fact 2: Some chickens are hens.Fact 3:

1.	Fact 1: All chickens are birds.Fact 2: Some chickens are hens.Fact 3: Female birds lay eggs.If the first three statements are facts, which of the following statements must also be a fact?I: All birds lay eggs.II: Some Hens are birds.III: Some chickens are not hens.
A.	only
B.	I only
C.	I and III only
D.	one of the statements is a known fact.
Answer» D. one of the statements is a known fact.

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