Statements: a. Mary said, "Ann and I both have cats." b. Ann said, "I don't have a cat." c. Mary always tells the truth, but Ann sometimes lies. Conclusions: I. Ann has a cat. II. Mary has a cat. III. Ann is lying.

II only
I and II only
I, II and III
I only

Correct Answer: I, II and III

Explanation:

Mary always tells the truth. Therefore, both Mary and Ann have cats. Clearly, Ann is lying. Thus, all the Conclusions I, II and III follow.

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