Answer:
Oral Stage
Explanation:
According to my research on Stages of the Freudian Theory, I can say that based on the information provided within the question Sarah most likely had difficulty in the Oral Stage. This stage takes place between birth and 1 year of age and is characterized by an infant relying completely on the caretaker and the child begins to develop a sense of trust and comfort through this oral stimulation. Which in this case since Sarah's mom was never around her sense of trust was shattered and is most likely the cause as to why she believes no one can really love her.
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