Pretty sure the correct answer is A.
The main goal of Manifest Destiny was "<span>A.) to expand America's borders ," since this mentality held that the United States was "destined to expand from coast to coast. </span>
This is true.
It backfired however since it not only ruined importing but exporting as well since people made their own tariffs then in other countries. This was the second highest set of tariffs in United States history and in actuality it just made the great depression worse than it was previously because it almost ruined the economy.
