Question

How did the invention of refrigerated railroad cars change the quality of life for Americans?
A.
It gave people the ability to freeze meat in their homes for long periods of time.
B.
It caused steam transportation to become more popular, encouraging Americans to travel.
C.
It decreased the need to farm, freeing up American workers to pursue other jobs.
D.
It allowed different foods from across the country to be transported to more places.

Answer 1

D. It allowed different foods from across the country to be transported to more places.

Refrigerated railcars made it possible to ship perishable foods (meat, milk, fruit, vegetables) long distances without spoiling, expanding the variety and availability of fresh foods in cities and regions far from where they were produced.