What Is One Way an Enterprise with Some Market Power

What is one way an enterprise with some market power might limit arbitrage so that their price discrimination policy works?

A) price its products identically despite huge differences in demand across different markets
B) differentiate otherwise identical products among nations along some line, such as design or packaging
C) adopt a pricing strategy that matches what competitors charge in each of the different national markets
D) limit sales of its products to only a few nations
E) sell its products at higher prices than normal to break even by selling fewer units