I was thinking maybe c but then A because nationalism gave them more confidence in their country.
Harriet Elisabeth Beecher Stowe (/stow/; June 14, 1811 – July 1, 1896) was an American abolitionist and author. She came from the Beecher family, a famous religious family, and is best known for her novel Uncle Tom's Cabin (1852), which depicts the harsh conditions for enslaved African Americans.
C. Anyone born outside the US to parents who aren't citizens of the US
Answer:
Explanation:
Avaiabiltity of materials
Labor/ manufacturing
Resources
Producers inability to keep up supply with demand