If a starbucks tall latte costs $3.20 in the united states and 3 euros in the euro area, then purchasing-power parity implies the nominal exchange rate is how many euros per dollar? a. 1.067 if the exchange rate is less than this, it costs fewer dollars to buy a tall latte in the u. s. than in the euro area. b. 938 if the exchange rate is less than this, it costs more dollars to buy a tall latte in the u. s. than in the euro area. c. 938 if the exchange rate is less than this, it costs fewer dollars to buy a tall latte in the u. s. then in the euro area. d. 1.067 if the exchange rate is less than this, it costs more dollars to buy a tall latte in the u. s. than in the euro area.