One of the MAIN economic reasons that the Upper South seceded after the lower South was that __________.

Ait continued to uphold a 2 party political system.
Bits proximity to the north made them fearful of retaliation.
Cits mainly argrarian and thought the slaves would revolt.
Dit contained large regions that did not support the plantation system.

Verified Answer :

One of the MAIN economic reasons that the Upper South seceded after the lower South was that its mainly agrarian and thought the slaves would revolt. The correct option among all the options that are given in the question is the third option or option "c". I hope the answer has come to your help.

Answer:

d) contained large regions that did not support the plantation system.

Explanation: