One advantage that secondary sources have over primary sources for historians would be that "<span>b. They can provide a general summary of evidence other historians have discovered," since this can often be helpful when trying to distill a great deal of information at once. </span>
<span>The correct answer is B. the concept of Manifest Destiny through expansion. The US believed that it was their destiny to spread all the way to the western shores so they naturally wanted to annex Texas and New Mexico as well. They also wanted California and Oregon Country which would ensure that they are spread from coast to coast.</span>
B. Arguments in favor of slavery are senseless.
Lincoln demonstrates int eh passage that every argument for the existence of slavery as it stood in the US could be easily countered or reversed. This shows that the arguments for slavery were weak and "senseless".
Lincoln belong to the Free-Soil Party before the Republican Party was created. Free-Soilers did not want slavery to extend any further than it had already existed in the 1850's. Essentially they didn't want it to go into the new territories. They believed that slavery was a dying institution and if not allowed to grow it would smother itself out. As Lincoln became president, his views began to include more of a moral stance suggesting enslaving another person was wrong.
Belief in progress, a more secular outlook, and the importance of the individual
Brutus believed that the Constitution would create a tyrannical government because it would be difficult for the representatives to know the wishes of the people in a large republic. Also, Brutus believed a republic would only work if people followed the rules voluntarily rather than being forced to