1. A stronger U.S. dollar makes the cost of oil, which is priced in U.S. dollars (assume no change in the U.S. dollar price):

   		higher for everyone.
   		higher for purchasers who must convert their currencies into the U.S. dollar.
   		higher for purchasers who earn revenues in the U.S. dollar, that is, purchasers who do not need to convert their currencies into the U.S. dollar.
   		does not affect the price of oil for anyone.