Final answer:
The provided texts do not point to a singular best-selling or favorite candy, but collectively discuss aspects of the candy industry and various confections. Therefore, 'Candies all around the world' most broadly represents the main idea of the texts.
Step-by-step explanation:
The question which asks, “Which title best expresses the main idea of this text?” is aimed at determining the most accurate title that encapsulates the content of various texts related to candy. After reviewing the provided excerpts, it seems that none of the provided titles perfectly capture the main idea since the texts highlight various aspects of candies, including specific examples like Candy Corn and Tootsie Rolls, an overview of candy in a local shop, the economic aspect of candy manufacturers, and a detailed look at Sour Patch Kids. However, the title “Candies all around the world” seems to be the most appropriate as it encompasses various types of candies and the international aspect of the candy industry. None of the texts exclusively focus on one particular candy being the best-selling or America's favorite, nor do they discuss only the top-selling candies in the US.