As More People Migrated West During the Gold Rush,what Happened

As more people migrated West during the gold rush,what happened to the demand curve in most western markets,holding all else constant?

A) The demand curve shifted to the right.
B) The demand curve shifted to the left.
C) There was no shift,but there was an increase in quantity demanded.
D) There was no shift,but there was a decrease in quantity demanded.
E) There was no shift,nor any increase or decrease in quantity demanded.