RK-J

When user reaches the end of a quiz,
-Check if we have the users QuizPreference.
--If yes, ask user "We will be sending your next quiz in X days. Would you like to change that?" [Get X from QuizPreference]
---If user says yes, askUserQuizPreference.
--else ask askUserQuizPreference

askUserQuizPreference: ask user "How often would you like us to send you a Quiz? Every 3 days or Weekly radio button". Once user gives this info, show "We will be sending your next quiz in X days" (where X is what the user chose now)