If the Price of Yoo-Hoo Is $2 in New York

If the price of Yoo-hoo is $2 in New York and $1 in St. Petersburg, Russia (after converting the rubles to dollars) , you might expect:

A) people to buy Yoo-hoo in St. Petersburg and sell it in New York until the price was the same in each country
B) people to buy Yoo-hoo in New York and sell it in St. Petersburg until the price was the same in each country
C) people to buy Yoo-hoo in St. Petersburg and sell it in New York and the price difference would remain
D) the price difference to exist forever
E) None of these answers are correct.