Answer: с. Tariffs enabled the North's manufacturers to compete with foreign manufactured goods.
Explanation:
The North was where most of American industry was in the first half of the 19th century but they were not always efficient as the Europeans in the production of certain manufactured goods. This meant that when European made goods arrived in the U.S., they were sold for cheaper prices than the North's.
The North therefore welcomed tariffs which increased the price of European goods thereby making American goods appear cheaper in relation. This enabled the North to compete better with these foreign producers.