Step 1: Understanding the Concept:
The question asks to identify the categories of symptoms found in schizophrenia. Schizophrenia is a complex mental disorder with a wide range of symptoms that are typically grouped into several categories.
Step 2: Detailed Explanation:
(A) Positive symptoms: These refer to an excess or distortion of normal functions. They include symptoms like hallucinations (perceiving things that aren't there) and delusions (fixed false beliefs).
(B) Negative symptoms: These refer to a decrease or loss of normal functions. They include symptoms like flat affect (reduced emotional expression), alogia (poverty of speech), and avolition (lack of motivation).
(C) Psychomotor symptoms: These relate to movement and behavior. They can range from disorganized or bizarre behavior to catatonia, where the person may remain motionless for long periods or exhibit repetitive, purposeless movements.
(D) All of these: Since positive, negative, and psychomotor symptoms are all recognized categories of symptoms in schizophrenia, this is the correct answer.
Step 3: Final Answer:
The symptoms of schizophrenia are broadly classified into positive, negative, and psychomotor/disorganized categories. Therefore, "All of these" is the correct answer.