Which of the Following Businesses or Individuals Would Benefit Most

Which of the following businesses or individuals would benefit most from a strong U.S. dollar?

A) A small store that sells American-made cameras in St. Louis, Missouri. The store has no foreign receivables or payables.
B) The Cancun, Mexico, outlet for Levi's jeans (made in the U.S.)
C) International Harvester (an American manufacturer of farming machinery that sells equipment to foreign customers.)
D) An American tourist visiting France.