Explorers meriwether lewis and william clark made careful preparations for their historic expedition. the trip lasted from may 1804 to september 1806. president thomas jefferson commissioned the journey, believing that there was a "northwest passage," or a waterway connecting the atlantic and pacific oceans. this would have made it easier for people to move west. do it! the two men were _________.
a millionaires
b patrolmen
c voyagers
d regulators