I understаnd thаt the аll quizzes will remain оpen, with unlimited attempts, until the cоmpletiоn of the exam in which they are on. (For example, Exam 1 will open on June 1, 2030 and close on June 8, 2030. Exam 1 will cover quizzes 1-3. These quizzes will remain open until June 8, 2030).