The excerpt above is an example of the author using direct address.
The author, after telling what he/she wants to tell, directs the reader directly to make it sympathize with the characters in the story and reflect.
Answer: B. Firms earn economic profit.
Explanation:
A developing country is a country that has a standard of living or level of industrial production well below that possible with financial or technical aid; a country that is not yet highly industrialized.
