Charlotte believes that she is a member of the russian royal family, and that her neighbors are american agents who want to destroy her. charlotte’s symptoms are most consistent with those seen in

Schizophrenia

Explanation:  

Schizophrenia: In abnormal psychology, the term "schizophrenia" is defined as a chronic and serious mental disorder or mental illness that affects an individual's behavior and thought processes and if the disorder is left untreated then it can often lead to psychosis.

Symptoms: Paranoid beliefs, hallucinations, disorganized thinking, cognitive deficit.

Signs: Social withdrawal, expressionless gaze, depression, inability to cry or express joy, hostility, deterioration of personal hygiene, insomnia, etc.

In the question above, Charlotte’s symptoms are most consistent with those seen in schizophrenia.

answer; scientific;

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