Context: My husband took me to our car and I sat down and after some time everything was good again . Another time I was sitting in class it was a hot day and everything around me was becoming dark . I put my head down on my desk and then my vision came back .
Question: What may be the reason for them losing their vision ?
Option 0: They passed out from low blood sugar .
Option 1: They were in an accident .
Option 2: They are dehydrated from the heat .
Option 3: They have a form of genetic blindness .
Answer: 2