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

the answer is d. give brainliest if right.

ps is this 7th grade civics?