The correct answer is Alvarez traces how her childhood behavior led her to
become a successful writer.
Explanation:
Julia Alvarez is an American writer whose parents lived in Dominican Republic during Rafael Trujillo's dictatorship. This is the main theme in A Genetics of Justice.
Letter D is the correct answer since the author strongly suggests that her behavior as a child (not stop asking questions and always looking for answers) led her to become a writer. Due to the themes she writes about, that could be classified as non-traditional or themes that face difficult situations (like why her parents escaped from Dominican Republic), she traces a direct line between her childhood and her profession.