Final answer:
The example of a negative symptom in schizophrenia is Asociality (B), which is a lack of motivation for social interaction and is treated with antipsychotic medications.
Step-by-step explanation:
The correct answer to which of the following is an example of a negative symptom in schizophrenia is B: Asociality. Negative symptoms of schizophrenia are those that are characterized by deficits or decreases in normal functioning. Asociality refers to the lack of motivation to engage in social interaction, and it represents a withdrawal from social activities and relationships. This is in contrast to positive symptoms, which add abnormal experiences, such as A: Delusions, C: Auditory hallucinations, and D: Illogical thoughts.
While both types of symptoms are part of the schizophrenic experience, negative symptoms often have a more debilitating effect on a person's ability to lead a functional life. The treatment for schizophrenia typically involves antipsychotic medications that work by blocking dopamine receptors and decreasing dopamine neurotransmission in the brain, which can alleviate both positive and negative symptoms to varying degrees.