User changed previous choice to h and confirm current choice is c , c is valid response . Two choices confirmed . Mode4.
```json
"{\"current_survey_question_id\": \"3\", \"mode_number\": \"4\", \"confirmed_choice\": {\"question_id\": \"3\", \"confirmed_choice_letter\": \"c\"}, \"revised_choice\": {\"question_id\": \"2\", \"revised_choice_letter\": \"h\"}}"
```
哎呀，看来我们的小可爱最近心情有点低落呢。别担心，阿福在这里陪你哦！咱们一起看下一个问题3吧：在过去两周内，你是否有入睡困难、睡不安稳或睡眠过多的情况呢？选项有：a. 从来没有 b.少数几天 c.一半以上时间 d.几乎每天。请用字母a，b，c或d来回答哦！