it is asking to explain one way that scholarly disciples not recorded in history have contributed the perspectives explained by Diamond. (who im presuming is the author)
The correct answer is number 2) the North manufactured goods to sell mainly to the Southern states, but the South preferred imports.
The tariffs controversy exposed sectional differences between the North and the South in that the North manufactured goods to sell mainly to the Southern states, but the South preferred imports.
The Congress of the United States passed the Tariff 0f 1828 on May 19, in order to protect the production of goods in the country, specifically in the states of the North. But Southern states immediately opposed to the act, heading by South Carolina, that considered the decision as to the "Tariff of Abominations," because the act set a 38% tax of most imported good. This represented a negative impact on the economy of the Southern states.
Finally, and most controversially, a Fugitive Slave<span> Law</span>was<span> passed, requiring northerners to return runaway</span>slaves<span> to their owners under penalty of law. The</span>Compromise of 1850<span> overturned the Missouri</span>Compromise<span> and left the overall issue of </span>slavery unsettled<span>.</span>
The answer I would have to go with would be B. foreign trade was booming
Hope this helps!