Which action contributed to the Southern belief that their economy was threatened? The founding of the Republican party
The finalization of the Missouri Compromise
The support of popular sovereignty in territories
The approval of protective tariffs on manufactured goods

The approval of protective tariffs on manufactured goods contributed to the belief that their economy was threatened. Option D is correct.

The people in the south believed that their economy was threatened because, there was an approval of tariffs on goods.

They already had water bodies that they could use to transport their goods, They were then opposed to paying tariffs on roads and canals because they felt that they gave them no benefits.

They wanted a situation where even though they paid these tariffs they would derive some economic benefits too.

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it is not option D

Explanation:

I did the assignment and did not get any points for the question

d hope this

explanation:

7 - to develop an asian ally

11- the red scare

14   the power of military -industrial complex

17 - the economy grew quickly

24 - the separation of church and state was not important