Directions: The passage below is from a short story set in the early twentieth century. Read the passage carefully before choosing the best answer.
Passage
The switchboard room of the Municipal Telephone Company in Oakhaven was a chamber of relentless, metallic vibration. Here, thirty young women sat in high-backed chairs before the towering web of jacks and cords, their hands moving with the frantic precision of weavers. The air was thick with the smell of warm vulcanized rubber, machine oil, and the dry dust of insulation. Through the narrow clerestory windows, the sun cast long, dusty shafts of light that illuminated the drifting lint but offered no view of the street below. Each click of a drop-indicator was a demand; each plugging of a jack, a momentary connection made and instantly severed. The room did not merely house the machinery of communication; it dictated the rhythm of the operators' breath and restricted their speech to the prescribed phrases of the exchange. For Clara, the switchboard was a grid that mapped the city's secret intimacies and public crises, yet kept her utterly isolated from both. The hum of the generator underneath the floorboards ran up through the legs of her chair, a constant, low-voltage tremor that seemed to vibrate in her teeth long after her shift had ended.
In the passage, the detailed description of the switchboard room's physical environment primarily functions to do which of the following?
- Aprovide a realistic description of the physical components and safety hazards of an early twentieth-century workplace
- Bsequence the daily routines and mechanical operations Clara must perform during her shift
- establish the mechanized environment as a controlling force that constrains the operators' behavior and isolates them from the community they serveCevap
- Dconvey the author's direct criticism of the municipal government's labor practices
- Ecorroborate Clara's perception that the other operators are indifferent to the demands of the switchboard