Context: I got this 16 GB flash voyager for several months . It has a strange problem now . Every time it only last about 20 second when I plugged in . I could copy and open files during that time , but then I can not access the voyager and everything on the voyager disappeared .

Question: What sort of problem might this be ?
Options:
0. a software error
1. None of the above choices .
2. Human error
3. An accident
Answer: 0