Hiram, Blanche, and Jonathan were all the officials belonging to African American community in the era of Reconstruction.
<h3>What is meant by slavery?</h3>
Slavery is the practice followed by the white people to treat black people as their slaves.
Hiram and Blanche were previously treated as slaves and then becoming the senators in the state of Mississippi. Jonathan was the secretary in the state of Florida who came to help in the reconstruction of the US country.
Therefore, none of the options is accurate as the option A and option B are totally incorrect and rest of the two are partially correct.
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<h2>Hey there,your answer is </h2>

<h2>Hope it helps you </h2>
He wanted to bring an end to slavery.
Answer:
Polk accomplished this through the annexation of Texas in 1845, the negotiation of the Oregon Treaty with Great Britain in 1846, and the conclusion of the Mexican-American War in 1848, which ended with the signing and ratification of the Treaty of Guadalupe-Hidalgo in 1848.
The United States Constitution does not specifically address the secession of states and the issue was a topic of debate from after the American Revolutionary War and until the Civil War, when the Supreme Court ruled, in Texas v. White, that states cannot unilaterally secede, except through revolution or through the expressed consent of the other States.