| List-I | List-II | ||
| (A) | Instrument of Accession | (I) | State units with the centre |
| (B) | Merger agreement | (II) | State agreed to become a part of union of India |
| (C) | Vishalndhra Movement | (III) | Redrawing of the boundary of state |
| (D) | State reorganisation commission | (IV) | Telegu Speaking areas be separated from the Madras Provinces |
What comes next in the series?
\(2, 6, 12, 20, 30, \ ?\)