Hello Yong Han,
For cases with one student's answer it's required to cancel user's submission in component's staff panel in LMS and then reset student's state in the problem from Instructor Dashboard. Unfortunately I can't suggest any user-friendly bulk anwer cancellation except one-by-one case.
Kind regards,
Liubov
вторник, 18 октября 2016 г., 7:13:35 UTC+3 пользователь Yong Han написал: