I would say B. improve food production
Answer:
The Twelfth Amendment (Amendment XII) to the United States Constitution provides the procedure for electing the President and Vice President. It replaced the procedure provided in Article II, Section 1, Clause 3, by which the Electoral College originally functioned. The amendment was proposed by the Congress on December 9, 1803, and was ratified by the requisite three-fourths of state legislatures on June 15, 1804. The new rules took effect for the 1804 presidential election and have governed all subsequent presidential elections
Explanation:
"<span>D. French radicals executed thousands of aristocrats and others" is the best option. Many thought that this showed how the revolution had gotten out of control and how it turned chaotic. </span>
This question is tough to answer, since perceptions of Manifest Destiny changed radically across the 19th century.
But many American citizens, politicians, and thinkers genuinely believed in the tenets of Manifest Destiny, so it's not fair to say that these Americans were simply manufacturing a false excuse for westward expansion. So we can exclude C.
It's also true that many other Americans (especially Southern Democrats) used the idea of Manifest Destiny to justify invading Mexico in the 1840s. Bu these Southerners were more interested in adding new slaveholding states to the Union than they were with fending off a potential enemy in Mexico (which was a vastly weaker military power).
And while much of America throughout the 19th century was indeed Protestant, and that most of the residents of Mexican territories were Catholic, Manifest Destiny was less interested in dismantling Catholic influence than it was in advancing its own expansionist, Protestant interests.
You'll want to double-check with your textbook to be sure about the context of this question, but the best answer from this angle seems to be B, since those Americans who did believe in Manifest Destiny certainly believed that westward advancement was not only obvious but sanctioned by God.
Europe, but more specifically London.