Solution
Option 1 -> When domestic currency appreciates, it becomes stronger, but increased import demand weakens it, not strengthens it.
Option 2 -> Devaluation is a deliberate government policy action in fixed exchange rate systems, not a market-driven outcome.
Option 3 -> Increased demand for imports affects foreign exchange markets, so currency rates must change.
Option 4 -> When demand for foreign goods rises, citizens need more foreign currency to pay for imports, increasing supply of domestic currency in forex market.
Hence, Option 4: Depreciation of domestic currency -> When income increases and people buy more foreign goods (imports), they need to exchange domestic currency for foreign currency. This increases the supply of domestic currency and demand for foreign currency in the foreign exchange market. As per demand-supply dynamics, increased supply of domestic currency leads to a fall in its value, causing depreciation. Depreciation is a market-driven decline in currency value under floating exchange rate systems, which is exactly what happens when import demand rises. -> correct