Which of the following statements is true about exchange rates?

The statement that exchange rates are floating and flexible accurately captures how many currencies are managed in the global economy. Floating exchange rates imply that the value of a currency is determined by market forces, such as supply and demand, without direct intervention by a country's government or central bank. This makes currency values subject to frequent fluctuations.

Additionally, the term "flexible" reinforces that these rates can adjust in real-time to economic conditions, trade balances, inflation rates, and political stability, among other factors. Since many major currencies operate under this system, this statement reflects a fundamental understanding of how exchange rates function in a contemporary economic environment.

In contrast, the other options present inaccuracies about how exchange rates operate. While some currencies may be pegged or fixed to another currency or a basket of currencies, stating that exchange rates are both floating and fixed does not fully capture the reality of most currencies in practice. Saying they are always the same or change only once a year fundamentally misrepresents the dynamic nature of currency value in response to economic indicators and market sentiment.