A- a description of the locale to a broader discussion of principles.
Explanation:
In this text, we see that the author is taking a walk when he encounters an old woman in his path. As he meets the woman, he discovers that she is a local, and wanting to lean more about the culture he is in, they engage in a conversation about the setting they are in and the local culture. This superficial description of the setting leads to a broader discussion of more philosophical principles, particularly on the subject of economy.
Decomposers eat dead animals, like bacteria feeding on a deer. They also support plant life by breaking down animals, which makes the soil rich in nutrients.