Final answer:
The best way to revise the concluding sentence for clarity and detail is option d) Barrio Boy describes the author's small Mexican village and relays the adventures of his journey to a new life in the United States.
Step-by-step explanation:
The best way to revise the concluding sentence for clarity and detail is option d) Barrio Boy describes the author's small Mexican village and relays the adventures of his journey to a new life in the United States.
This option provides specific details about the story, such as the author's small Mexican village and the adventures of his journey. It also clearly states that the story is about someone leaving Mexico and coming to the United States, which directly addresses the question prompt.