Why are developing countries experiensing rapid population growth while developed countries are growing slowly or not at all?

Suppose a starbucks tall latte cost $4.00 in the united states, 5.00 euros in the euro area and $2.50 australian dollars in australia. nominal exchange rates are .80 euros per dollar and 1.4 australian dollars per u.s. dollar. where does purchasing power parity hold? a. both the euro area and australia. b. neither the euro area or australia. c. the euro area but not australia. d. australia but not the euro area.