OE
“Xenophobia,” which means dislike or fear of people from other social or cultural groups, is described in the sentence as “a learned behavior.” The “however” marks this view as opposed to the preceding part of the sentence, which then must be saying that “many people erroneously believe” that xenophobia is not a learned behavior. If a behavior is not learned, it must be inborn or innate. The correct answers are “prone” and “disposed,” which mean inclined or willing. “Compelled” and “indoctrinated” form a pair that suggests that force or manipulation are used to get people to be xenophobic, which does not fit with the idea of it being an innate behavior. “Taught” cannot be correct because if something is “taught,” it is not innate. “Proven” is a theme trap because scientists often try to prove theories, but it cannot be correct because it does not have a match.
Answer: C,D