Which combination shows that a country is using a ‘dirty float’?
- Anominal exchange rate: depreciates by 20%; foreign currency reserves: decrease by $1 billion
- Bnominal exchange rate: depreciates by 20%; foreign currency reserves: unchanged
- Cnominal exchange rate: unchanged; foreign currency reserves: decrease by $1 billion
- Dnominal exchange rate: unchanged; foreign currency reserves: unchanged