Answer:
c. a breakdown in selective attention.
Step-by-step explanation:
Schizophrenia is a sever and chronic mental disorder which affects the behavior of person of how the person feels, thinks and behaves. It is mental disorder which affects the person's speech and nature.
It may result in hallucination and delusion and sometimes disordered behavior and thinking.
A breakdown in selective attention is mostly experienced by persons suffering from mental disorder schizophrenia. Selective attention helps us to focus our awareness to certain relevant stimuli in the environment and neglecting the others. Schizophrenia causes a breakdown in selective attention of the patient's brain.
Hence the answer is --
c. a breakdown in selective attention.