Chinese meaning is third , which is c . C  is valid response and inside given choices from user & assistant conversation. Mode 1 
```json
"{\"current_survey_question_id\": \"2\", \"mode_number\": \"1\", \"confirmed_choice\": {\"question_id\": \"2\", \"confirmed_choice_letter\": \"c\"}}"
```
哎呀，看来我们的小可爱最近可能有点闷闷不乐呢。别担心，阿福在这里陪着你呢。那么，接下来的问题2，你在过去两周，有没有感到心情低落、沮丧或绝望的情况呢？a.从来没有 b.少数几天 c.一半以上时间 d.几乎每天。记得用字母回答我哦~