In Ireland,a Pint of Beer Costs 2

In Ireland,a pint of beer costs 2.2 Irish pounds.In Australia,a pint of beer costs 4 Australian dollars.If the exchange rate is .5 pounds per Australian dollar,what is the real exchange rate?

A) .91 pints of Irish beer per pint of Australian beer
B) 1.1 pint of Irish beer per pint of Australian beer
C) 3.64 pints of Irish beer per pint of Australian beer
D) 4.4 pints of Irish beer per pint of Australian beer