Option 2: (D), (C), (B), (A) -> The chronological order is: Economic Reform (1991) - India's landmark liberalization policy; FRBM Act (2003) - legislation for fiscal discipline; Demonetization (November 2016) - withdrawal of ₹500 and ₹1000 notes; GST (July 2017) - unified indirect tax system. This arrangement correctly places events from earliest (1991) to most recent (2017). -> correct