Fuel Connector Products, Inc., agrees to sell Go-Flo, Inc., a certain quantity of hose couplings and fittings, but the contract does not specify a place of delivery. Go-Flo is expected to pick up the goods. The place of delivery is
a) fuel connector 's place of business
b) go-flo's place of business
c) the current location of the hose coupling and fittings
d) the U.S postal service office nearest to go-flo's place of business