Final answer:
The passage from "Barrio Boy" by Ernesto Galarza describes the exploration of a bathroom and the discovery of a toilet and bathtub. The correct option is a) Topic Sentence: Describing the exploration of an unfamiliar bathroom.
Step-by-step explanation:
The passage from "Barrio Boy" by Ernesto Galarza describes the exploration of a unfamiliar bathroom. The narrator examines a toilet with a smooth enamel bowl, a wooden lid, a chain, and a small brown box near the ceiling. The narrator also discovers a bathtub in another closet next to the toilet.
The bathtub is filled with water from a brass faucet and the narrator enjoys sliding down and splashing into the tub.
Considering the passage provided, it seems the most suitable topic sentence to summarize the student's experiences would be: Recounting a day at a hotel with peculiar bathroom facilities.
To support this topic sentence, one could use the supporting detail: discovering the wonders of flushing a toilet and the novelty of using a bathtub, which incorporates the elements of gushing water and the joyous discovery of a bathroom's features as highlighted in the passage from 'Barrio Boy' by Ernesto Galarza.
The correct option is a) Topic Sentence: Describing the exploration of an unfamiliar bathroom.