Option 4: (C), (B), (D), (A) -> The money multiplier process begins with statement (C) where the bank receives an initial deposit of Rs 100 and must maintain a 20% reserve requirement (Rs 20), leaving Rs 80 available for lending (B). The bank then lends 50% of this lending amount (Rs 40) to Sonia (D). When Sonia deposits this Rs 40 back into the banking system, it adds to the original Rs 100, resulting in total deposits of Rs 140 (A). This sequence demonstrates the expansion of money supply through the fractional reserve banking system. -> correct