I think it is B because the Columbian exchange was bringing what they already had in the old world to the New world and what the New world had that the old world didn’t they brought they brought to the old world if that makes sense.
<span>According to cognitive dissonance theory,there is a tendency for individuals to seek consistency among their cognitions like beliefs and opinions.when there is an inconsistency between attitudes or behaviours ,something must change to eliminate the dissonance.</span>
Answer:
While the agricultural, slave-based Southern economy was devastated by the war, the Northern economy benefited from development in many of its industries, including textile and iron production. The war also stimulated the growth of railroads, improving transportation infrastructure.
Explanation: