Correct answer is C. The author is starting with a general topic and moving to more specific information
Explanation:
The author in this article <em>"One poor harvest away from chaos"</em> opens the topic of <em>general deficiency of food worldwide</em>. According to the article, the global food prices could rise because of <em>"shrinking supplies"</em>.
The mentioned paragraph starts from that general idea that the food prices could rise, and support the claim that it could be generally very bad for the world population, by adding additional information about the increase of various costs of oil, commodities, etc.
