Question

After they started using blast furnaces, a new day dawned for American iron makers. Blast furnaces allowed them to produce more iron for less money. Soon, America was producing more iron than nearly every other country in the world.
What does the author mean by a new day dawned?

A. Iron makers could start producing more iron early in the morning.
B. The new blast furnaces took up less space than the older furnaces.
C. Blast furnaces marked a major change for American iron makers.

Answer 1

C. Blast furnaces marked a major change for American iron makers.