The field that adds an option in the MCQ was wrongly removed from the views in v15.3 in Task-2600241. This commit fixes it by adding it back with the label 'Comment is an answer'. taskID-3074257 closes odoo/odoo#107285 X-original-commit: 3de1e63d9411f88b397ad83109021574b1036b6e Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>