Barriers to entry into a market could include all of the following, except one. Which is the exception?

Ritzland produces only one good. 10,000 units of the good were produced in Ritzland during a certain year and were sold at $42 per unit. The price of each unit of the good two years back was $37

i) Find the real and nominal GDP of Ritzland taking $37 as the base price. ii) Calculate the GDP deflator for Ritzland for the year in question.

Of the following OECD countries, which spends the most on health care when measured as a percentage of GDP?

A) the United Kingdom B) Japan C) Canada D) the United States