Price stability is achieved when inflation, the general increase in the price level of goods and services over a period of time, reaches a relatively low level, usually from 1 - 3%.
For this reason, an inflation level (average price level increase) of around 2% would be considered as price stability by any contemporary central bank.
The best and most correct answer among the choices provided by the question is the third choice ( 3 ).
Polaris is known as the north star pointing to the geographic north. Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.