Question 5 (multiple choice worth 5 points)
what did churchill mean by the "iron curtain"?
the cultural divide between the united states and europe
the political divide between the northern and southern hemispheres
the political divide between western and eastern europe
the cultural divide between north america and asia

The Iron Curtain was a metaphorical name for a very real, heavily guarded (hence the "Iron") border between the Communist/Socialist and Capitalist states in Europe. The divide also run from north to south, Separating the continent into Western and Eastern parts - so the correct answer is:

the political divide between Western and Eastern Europe