<u>Broad Context:</u> The "Big Picture" is that the US is trying to annex the Republic of Texas as part of their states, and that Texas already <em>shared many common traits </em>(why? part) with the US, and should join as a state of their choosing, (which means slave or free) (How? part).
<u>Other Context:<em> </em></u><em> </em>The adding of Texas into the US (eventually as a slave state) offsetted the balance between the slaves and free states, and so California (gained after the Mexican-American War) was turned into a free state. Texas was the cause of the Texas Revolution & later on the (already named) Mexican-American War. The adding of Texas, and later the Gadsen Purchase, help create today's US southern border that is shared with Mexico.
hope this helps
The completion of the Transcontinental Railroad greatly affected companies that made products in that it made it far easier for them to transport their goods over long distances to markets, which greatly increased profits and output.
Washington set many precedents as the first president, as he was acting without precedent, but of these possibilities, the answer is "<span>A. He refused to serve more than two terms and promoted dignity in office.</span>"