We noticed an inconsistency in the content width on the lesson page that is rendered when a question with an answer response is rendered via mod/lesson/continue.php. From a cursory glance this seems potentially due to the lack of a $PAGE->add_body_class('limitedwidth').

Steps to reproduce:

1. Create a Lesson activity
2. Edit lesson and select option to add a question page
3. Select Multiplechoice question
4. Populate question content and make sure to include response content for answers
5. Save and preview lesson
6. Answer question
7. Land on the answer response page at mod/lesson/continue.php