Based on the fact that Lucy wants to study about changes in physical attributes, they should specialize in developmental psychology.
<h3>What is developmental psychology?</h3>
This is a branch of psychology that deals with the way humans grow and develop mentally and psychologically overtime.
It involves looking into changes in cognitive skills, moral reasoning, and social behavior as well as physical changes.
To conclude, Lucy would be better off being a developmental psychologist.
Find out more on developmental psychology at brainly.com/question/15650981.
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