Charlotte is excessively needy and smokes cigarettes constantly to ease her anxiety. according to the psychodynamic theory of personality, charlotte may be fixated at the stage of psychosocial development.

Oral Stage.

Explanation:

The blank will be filled by Oral Stage.

Oral stage is the stage of life when the infant is of age ranging  0-18 month period.  

In the oral stage, there is a transition in the infant from bottle to food. At that period of time child enjoys sucking into the mouth if he fails to do so he gets fixated.

so, this kind of behavior is seen in Charlotte that is why this according to psychosocial theory this personality is similar to Oral Stage.  

answer; a cost benefit analysis;