Multiple choice general knowledge All horses have hooves. No humans have hooves. No humans are horses. Some humans are horses. None Both Reveal answer Fill a bubble to check yourself A Correct answer Explanation Valid syllogism: All horses have hooves (horses ⊆ hoofed). No humans have hooves (humans ∩ hoofed = ∅). Since all horses have hooves and no humans have hooves, the sets are disjoint, meaning no humans are horses.