Manifest Destiny was basically the idea of expanding the United States westwards. The term was coined in 1845 by a newspaper editor named John Louis O'Sullivan.
A is the correct answer
I did this in class last week
Proves why the other persons argument is incorrect and why your argument is correct
The correct answer is Winfield Scott. He was an American war general who successfully managed to land amphibiously at Veracruz and initiate the siege of Veracruz which was a successful military endeavor of the United States of America. It was an integral part of the Mexican-American war.