Perhaps the Best Advice for an Entrepreneur Who Is Deciding

Perhaps the best advice for an entrepreneur who is deciding whether to export a product is

A) choose a product that is not doing well in the U.S. market anyway and let the cultural differences give sales a boost.
B) choose only new products because international markets are becoming increasingly sophisticated.
C) product choice doesn't matter much because the cultural factors that will determine the success or failure of the product are too hard to figure out anyway.
D) choose products that have succeeded here in the U.S. market.