In “Left in the Dust,” how does the author elaborate on the idea that horse-
powered transportation was essential to life in 1900?
A. By describing why railroad transportation was not as reliable as
horse-powered transportation
O B. By listing the everyday tasks that relied on horse-powered
transportation
O C. By explaining that horseless carriages were more expensive than
horse-powered transportation
D. By mentioning the businesses and stores that serviced
horse-powered transportation