Are you smart enough to answer these, please.....help. ?

Question

1. Which country was a major power in the 18th century:

a. Pruissia b. Italy c.USA d.Canada

2. The cuban Missile Crises and the building of the Berling wall were crises that led to what war?

3. Which country has the world largest and most advance economy in the last half of the 19th century .

Answer 1

1. d Canada

2. Vietnam War

3. China

Answer 2

idk!

Answer 3

ooh.... someones cheating on their homework.......