Which of the following was not a major crop production produced in rome a.) rice b.) grain c.) olives d.) grapes

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".

c it says nothing about connecting those 2 seas.