Election of lieutenant governors

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If you founded a U.S. state, how should the lieutenant governor be elected?

The following map shows the common methods used by the U.S. states:



Α: Same ticket
B: Same ticket in the general election, separate election in the primaries
C: Separate election
D: Elected by the state senate
E/F: Jurisdiction does not have a lieutenant governor

Some states don't have the office of a lieutenant governor, thus other office holders occupy that post in case of death, removal or resignation:

E: In Arizona, Oregon and Wyoming (and Puerto Rico) it's the secretary of state.
F: In Maine and New Hampshire it's the Senate president.

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Illinois is same ticket in general, separate in primary, I think Michigan elects theirs in a convention instead of a primary.

I think Wikipedia defines primary as a contest where all voters can vote for the lieutenant gubernatorial candidate.

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The yellow method seems to be a particularly Southern thing. Why?
Do Southerners hate the establishment so much that they don't want them to force any politician upon them?

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It's a pity that the map doesn't show how the "dark blue states" choose their LG candidates.
i think in some states the gubernatorial candidate has to choose his deputy before the primary, and in some states he can choose him at the state party convention, right?

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When I created this poll, South Carolina was still a yellow state.
Does anybody know why they changed it?

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Do I have a bad memory? Has Kentucky changed its constitution regarding the election of its lieutenant governor?