Refer to the figure below, showing the structure of l-alanine. 
Which is the correct structure for d-alanine?
Definitions:
Jean Piaget
A Swiss psychologist renowned for his pioneering work in the field of developmental psychology, especially his theory of cognitive development in children.
Psychological Meanings
The interpretations and importance given to certain phenomena, objects, or events based on psychological perspectives and individual mental frameworks.
Biological Male
An individual whose primary sexual characteristics and genetic makeup at birth are typically associated with the male sex.
Gender
The range of characteristics pertaining to, and differentiating between, masculinity and femininity, determined by a combination of biological, social, and cultural factors.
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