Answer:
delusions.
Explanation:
Schizophrenia -
It is a type of mental disorder , where the people interprets the reality in a very unusual manner , is referred to as schizophrenia .
Proper treatment require a very lengthy treatment procedure .
The disorder can be due to hallucinations , delusions .
The person suffering from this disorder faces a lot of difficulty in the day to day activities .
Hence , from the scenario of the question ,
The correct answer is delusions.