• (A) Some men wear tuxedos. Tuxedos are expensive. Therefore, men have expensive tastes.
• (B) All chalks are dusters. Some chalks are boards. Some dusters are pens. Therefore, some dusters are boards.
• (C) Some rats are cats. Some cats are dogs. No dog is cow. Therefore, some cats are rats.
• (D) Only rich countries have farms. All farms are stables. Therefore, some stables are in rich countries.