I WILL GIVE BRAINLIST Which of the following describes the difference between the Santa Fe Trail and the Old Spanish Trail?

a
The Santa Fe Trail was used by traders to cross the Great Plains; the Old Spanish Trail was used by traders to reach California.
b
The Santa Fe Trail followed a series of American Indian and early explorers' trails; the Old Spanish Trail was created by western settlers.
c
The Santa Fe Trail was used mainly by settlers trying to reach the West; the Old Spanish Trail was a commercial route that brought great profits to traders.
d
The Santa Fe Trail crossed the deserts and mountains of Mexico's northern territory; the Old Spanish Trail began in Missouri, where fur and silver sold well.