Which excerpt is the best example of an appeal to ethos?

I believe the answer is A.

Explanation:

Ethos is the appeal to emotion, morality, etc. Discussing the number of hungry people doubling to numbers in the millions appeals to this.

The answer is D. "Robert Zoellick, President of the word bank, warns that the rising prices are 'A threat to global growth and social stability.'"

Ethos is meant to make an appeal through credibility and trust. Including a quote from an individual of a trusted position in relation to this topic is the best way of having a credible source, which is an example of ethos.

Explanation:

nominative