To cast their votes wisely, citizens should
a. study law.
b. be informed.
c. watch tv.
d. ask how their voted

for your : )

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".