First off, the controversy of this had led to an imbalance in congress among the number of free states and slave states. So this rules out our first option. Due to it not being all of the above, that's our fourth answer ruled out as well. The Webster speech did not happen for 10 more years so it is very unlikely that this is what led to that speech. Even without the process of elimination, it would be B because the Missouri Compromise admitted Missouri as a slave state and Maine as a free state in order to preserve the balance of power in congress. Also, Henry Clay (the Great Compromiser) drafted this.
<span>Why are conference committees rarely necessary? Answer: Conference committees are now rarely used in Congress Senate Resolution 16 is designed to reduce the number of motions necessary to convene a conference committee, [ thus reducing the opportunities for minority obstruction. It seems likely however, that the effects of these changes in the current Congress will be minimal. A conference committee is a committee of the Congress appointed by the House of Representatives and Senate to resolve disagreements on a particular bill. when the two houses pass differing versions of a bill and the first house will not agree to the changes a conference committee will be done. </span>
<span> Periodization can help historians know when an event occured. This can also help historians learn the cause and effect of another time in history.</span>
I believe your answers are A, D, and E. I hope I could help! :))