Explanation
Correct answer: A.
Choice A is the best answer. “Suitable” means “appropriate for a particular purpose.” Since the text indicates that two of the best ballet dancers of the twentieth century were Osage, we can infer that the author believes that ballet is a very suitable artform for telling Osage stories.
Why the other choices are wrong
Choice B
Choice B is incorrect. The text never suggests that Tinker-Smith’s choice was determined. That would imply that Tinker-Smith initially faced some kind of obstacle or opposition, and nothing like that is mentioned in the passage.
Choice C
Choice C is incorrect. The text implies the opposite of this. “Arbitrary” means “based on random choice or whim rather than reason.” But the text does give us a good reason behind the choice to tell Osage stories through ballet: two of the best ballet dancers of the twentieth century were Osage.
Choice D
Choice D is incorrect. The text never suggests that Tinker-Smith’s choice was “unpredictable.” Rather, the fact that two of the best ballet dancers of the twentieth century were Osage makes ballet especially appropriate for telling Osage stories.