Answer: Brief psychotic disorder
Step-by-step explanation:
According to the given question, the Lucinda is basically suffering from the psychotic disorder as her daughter has been encountered with an accident due to the hit and run driver.
The brief psychotic disorder is one of the type of psychotic behavior of the person which is basically caused due to some unforeseen circumstances or the natural disasters.
The main cause of the psychotic disorder is to due sudden stress and the disorganized behavior of the person which include delusions. Therefore, Brief psychotic disorder is the correct answer.