In odoo 18, When creating an opt-out reason in the 'Email Marketing' app, how can you give recipients the opportunity to provide their own feedback as to why they're opting out?
A. Toggle the 'Allow Feedback' switch on for the desired opt-out reason on the 'Opt Out Reasons' page
B. Send a follow-up email to recipients who opted out, asking for elaboration
C. It's not possible