Nikola chews incessantly on her finger nails,and when she's NOT doing that she's smoking or chewing on pens.According to Freud,at what stage of psychosexual development would Nikola be fixated?

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According to Freud's theory of psychosexual development, the oral stage occurs from birth to 18 months, during which the focus of pleasure is on the mouth. A fixation at this stage may lead to oral behaviors in adulthood, such as nail-biting, smoking, or overeating. Therefore, Nikola's behaviors suggest that she is fixated at the oral stage.

Nikola Chews Incessantly on Her Finger Nails,and When She's NOT