One of the biggest national concerns during the 1960 presidential election was: A. Nation-wide shortage of coal.
B. Were we winning or losing the Cold War.
C. Should we send men to Mars.
D. Was Adlai Stephenson a good candidate.

B. were we winning or losing the cold war

Explanation:

The issue of the Cold War dominated the election, as tensions were high between the United States and the Soviet Union. Kennedy won a 303 to 219 Electoral College victory and is generally considered to have won the national popular vote by 112,827, a margin of 0.17 percent.

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".