Multiple choice general knowledge No lazy students pass exams. Some students pass exams. All students are lazy. Some students are not lazy. None Both Reveal answer Fill a bubble to check yourself B Correct answer Explanation Valid syllogism: No lazy students pass exams (lazy ∩ pass = ∅). Some students pass exams (students ∩ pass ≠ ∅). Since some students pass exams and no lazy student passes, the students who pass must be non-lazy, meaning some students are not lazy.