|A) Birds fly in the air. Trees are birds. Therefore, trees fly in the air.||B) Some boys steal. All who steal are naughty. All naughty are honest. Therefore, some boys are honest|
|C) All girls like dance. Some girls are Indian. All Indians are artists. Therefore, some artists like dance.||D) All liars are not thieves. All thieves are criminals. Therefore, all liars are criminals|
Answer: D) All liars are not thieves. All thieves are criminals. Therefore, all liars are criminals
Since all liars are not thieves so all liars cannot be criminals.