Option 1 -> Incorrect. Includes (B) which states domestic currency appreciated, but it actually depreciated.
Option 2 -> Correct. (A) Rupee depreciated as more rupees needed per dollar; (C) Import bills in rupees increase; (D) RBI sells forex reserves to stabilize rupee.
Option 3 -> Incorrect. Includes (B) which contradicts (A) - currency cannot both appreciate and depreciate.
Option 4 -> Incorrect. Includes (B) which is wrong - the rupee depreciated, not appreciated.
Hence, Option 2: (A), (C) and (D) only -> Initially ₹50 = 1,now₹75=1. This means: (A) The rupee has depreciated since more rupees are needed to buy the same dollar amount. (C) Import bills denominated in dollars will cost more in rupee terms, increasing the rupee value of imports. (D) To counter such depreciation, RBI typically sells foreign exchange from its reserves to increase dollar supply and support the rupee value. Statement (B) is incorrect as the currency depreciated, not appreciated. -> correct