3.According to Thoreau, what is the relationship between trains and nature?
A. Trains can distort passengers’ perceptions of nature.
B. Trains make the landscape more visually interesting.
C. Trains can transport people to natural settings.
D. Trains cause damage to the environment.
4.According to the lecture, what point does Thoreau emphasize about trains and the penny press?
A. Penny-press publications were read by average citizens, but trains were used mainly by the wealthy
B. Trains delivered penny-press publications to a broad national audience.
C. Both trains and the penny press threatened people’s individualism.
D. Both trains and the penny press enhanced people’s understanding of the world.