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Which of the following formations on a line in an E-R diagram means that the relationship need not have an entity of that type?
Sigmund Freud
Austrian neurologist and founder of psychoanalysis, a method for treating psychopathology through dialogue between a patient and a psychoanalyst.
Psychoanalytic Theory
A theory of personality and therapeutic technique that attributes thoughts and actions to unconscious motives and conflicts.
Twenty-First Century
The current century, spanning from January 1, 2001, to December 31, 2100, marked by significant advancements in technology, global communication, and cultural exchanges.
Genetic Contributions
Refers to the influence of genes on the physical and behavioral characteristics of an organism.
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