Final answer:
The word that best completes the sentence is El racista.
Step-by-step explanation:
The word that best completes the sentence is El racista. "Odía a personas de diferente raza" translates to "He/she hates people of different race." In this context, "El racista" (The racist) is the most appropriate option because it directly refers to someone who holds prejudice or hate towards people of different races.
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