Why did Henry Clay’s plan fail?

After the Nullification Crisis in 1833, tariffs remained the same rate until the Civil War. However, the national system of internal improvements was never adequately funded; the failure to do so was due in part to sectional jealousies and constitutional squabbles about such expenditures.

Explanation:

hope its right g

answer: answer is (d)

explanation: it makes more sence than all the others and i know more stuff than you

music and prayer? (you may punch me in the face if im wrong : > )