The following table contains hypothetical data for Canada's balance of payments (the statistical discrepancy is assumed to be zero). All amounts are in billions of dollars. Merchandise exports $137 Merchandise imports -128 Service exports +20 Service imports -26 Investment income -18 Transfers +4 Other financial investments -3 Portfolio and direct +12 investments Capital account flows +11 Changes in official reserves -9 7. Canada had a merchandise trade: A. surplus of $137 billion B. surplus of $9 billion C. deficit of $9 billion D. surplus of $3 billion E. deficit of $3 billion