The table presents the real GDP per head for a country in 2021 and 2022. 2021: $\$20000$ 2022: $\$21000$ What is most likely to have changed between 2021 and 2022?
- AIncomes were distributed more evenly.
- BThere was more activity in the informal economy.
- CThe living standards of some people improved.
- DThe rate of inflation increased.