Respuesta :
The Main reason for the failure of Popular Sovereignty was option B. The refusal by Senate to accept the results of votes in Kansas and Nebraska as valid.
Popular Sovereignty
In order to save America from Civil War, this strategy was formed to determine whether the Western territory will permit or prohibit slavery. The procedure was to give voting rights to the people of residents rather than Federal Government to decide the fate of slavery system.
In principle this strategy was democratic, but in practice it had many issues such as, the problem of who qualified as a resident of a territory, how to regulate voting fraud etc. This problem became evident in Kansas and Nebraska Voting results. Therefore, the option B is true.
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