Poverty of speech, blunted and flat affect, loss of volition, and social withdrawal are all examples of negative symptoms of schizophrenia.
The correct answer is Drug use. Obviously a person using a drug to get someone better or to make someones life a bit more stable.
It can not be drug abuse as it is using the drug for just casual purposes which infacts harms the other person.
Also, it can not be addiction as that is when the person is addicted to the drug and he or she has no motive of medication or something and just uses it for the sake of it.
