"Within a decade," promised the top representative of the world's mightiest country, "no man, woman or child will go to bed hungry."

Geoffrey Lean, "One Poor Harvest Away from Chaos"
How does the passage appeal to ethos?
A. It introduces the main idea of the article.
B. It uses a quote from a public figure to establish credibility.
C. It makes the audience feel better about the problem.
D. It shows that the author is biased against the poor.