Clay’s American System aimed to create a unified economy across the United States, and his high tariffs on imported goods were intended to stimulate domestic manufacturing. The best response that reflects how this would specifically benefit the West and South would be:
He expected that state-constructed roads, which would make the transportation of goods from each region profitable, would be built from the funds.
This response emphasizes the importance of infrastructure improvements that would facilitate trade and transportation of agricultural products from the West and South to Northern markets, ultimately leading to economic growth in those regions.