the most responsible for aiding where trade routes
It was mostly "amassing the largest armies ever in one place" that resulted in the single bloodiest day in American history at the Battle of Antietam, since although this was technically a Union victory, both sides were fairly evenly matched.
Answer is A, and I like to remember Roosevelt’s Square Deal as tackling the “CCCs”: consumer protection, control of corporations (trust busting/regulating), and conservation.
Saint thomas aquinas was a catholic priest in the dominican order and one of the most important medieval philosophers and theologians.