I. The 69th Amendment Act, 1991: Granted special status to Delhi, redesignating it as the National Capital Territory of Delhi and creating a legislative assembly and council of ministers for it (E). II. The 75th Amendment Act, 1994: Enabled the establishment of State-level Rent Tribunals for the determination of rent and disputes related to tenancy rights (A). III. The 80th Amendment Act, 2000: Introduced an alternative scheme of devolution of shared central taxes to the states, based on the recommendations of the Tenth Finance Commission (D). IV. The 83rd Amendment Act, 2000: Provided that no reservation for Scheduled Castes in Panchayats would be necessary in Arunachal Pradesh, as the state is wholly tribal and has no Scheduled Castes (B). Matching these pairs gives I-E, II-A, III-D, IV- B, which corresponds to option A.