One prominent critic of Manifest Destiny was Henry Clay, a Whig, who argued that instead of westward expansion, A. the nation should focus on developing the territory that it already had with complex infrastructure.

B. the United States should negotiate its border with Canada and try to annex territory from the British.

C. farmers and settlers should be taught skills that allowed them to work in cities and factory towns.

D. the government should invest in the military to secure borders against foreign powers.