Answer:
None of the above
Explanation:
The missing options are:
The only thing that we can be 100% certain is that the monetary value of output in Altaria quadrupled. The nominal GDP measures the total production of new and finished goods and services in a country during a year. It doesn't consider inflation, real GDP does.
In this case, if inflation increased dramatically, say 400%, the output didn't change at all, only the nominal monetary value increased. A rise in inflation would decrease the standard of living in the country. The unemployment rate may or may not have increased.