Purchased on Mercari. It's a used item. There were markings, which I've obscured. It seems the social studies subjects chosen were World History and Ethics. For science, it's Chemistry Basics; the rest is clean. - Title: Answer Explanation 2022 November - Publisher: Benesse - Subjects: Mathematics, Civics, English, Science, History B - Grade Level: 2nd Year of High School Thank you for looking.