GATT was established in 1948, WTO was founded in 1995 as successor to GATT, quantitative restrictions on imports were removed in 2001, and the Goods and Services Tax Act was passed in 2017. Hence the correct order is (C), (D), (A), (B).
Note: NTA has marked this question as DROP in the final answer key. Based on the chronology of events, option 4 appears to be the intended answer.