5. what unsuccessful compromise was proposed after the deep south seceded that called for the old missouri…

5. what unsuccessful compromise was proposed after the deep south seceded that called for the old missouri compromise line to extend to california, with protected slave states to the south and free states to the north?\na. missouri compromise.\nb. crittenden compromise.\nc. mason dixon compromise.\nd. compromise of 1850.
Answer
Brief Explanations:
The question is about identifying the unsuccessful compromise proposed after the Deep South seceded, aiming to extend the old Missouri Compromise Line. The Crittenden Compromise (option b) was an 1860 - 1861 proposal to resolve the secession crisis by extending the Missouri Compromise line westward, protecting slave states south and free states north, but it failed. The Missouri Compromise (a) was earlier (1820), the Mason - Dixon line (c) is a boundary, and the Compromise of 1850 (d) was before secession.
Answer:
b. Crittenden Compromise.