Final answer:
The American System led to debates about sectional favoritism, with measures like the tariff viewed as benefiting the North over the South, thereby increasing regional tensions.
Step-by-step explanation:
It is true that plans to further the US economy, such as the American System, generated debates over whether such policies would potentially favor different sections of the country. The American System, devised by Henry Clay, included a national bank to stabilize the currency, a tariff to protect American industries, and funding for internal improvements such as transportation networks to bolster economic development. While supporters believed these measures would benefit all regions, critics argued that the tariff in particular would aid northern industrial interests at the expense of southern agricultural economies, leading to increased sectional tensions between the North and South.