Context: Jim says we should get a humidifier and I agree . I started back on Celexa again for my depression . So far it 's going great . I feel again like a giant fog has been lifted from my brain .

Question: Why has the remission of depression led to the feeling of a reduction in brainfog ?
Options:
0. One of the symptoms of depression is a mental sluggishness and slowing of thought
1. Because it inspired them to get a humidifier which helped remove moisture from the air
2. The depression lifting coupled with buying a humidifier has made their thinking clearer
3. None of the above choices .
Answer: 0