Which event led directly to the succession of southern states

a. a us army attack on fort sumter

b. the election of abraham lincoln as president

c. the implementation is the emancipation proclamation

d. an effort by republicans to repeal the fugitive slave act

it cant be b or a  or d so c is your best choice my lady

or my sir

Explanation:

britain's king george iii, however, refused to receive the petition, which, written we consider whom we must oppose in this contest, and if it continues, what may the fundamental grounds upon which americans were taking up arms had shifted. that king george refused to so much as receive the

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