AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
(B) Only II and III are correct.
As per the textbook, the Parliament cannot on its own change the power-sharing arrangement (Statement I is wrong). Any change must be passed by both Houses with at least two-thirds majority (II ✓), then ratified by at least half the State legislatures (III ✓). President's assent alone is insufficient (IV is wrong).
Source: Democratic Politics I, Chapter 2 — "What makes India a federal country?"
The key passage states: "The Parliament cannot on its own change this arrangement. Any change to it has to be first passed by both the Houses of Parliament with at least two-thirds majority. Then it has to be ratified by the legislatures of at least half of the total States." Statement I is false (Parliament cannot act alone) and Statement IV is false (President's assent is not mentioned as sufficient). Only II and III match the textbook exactly.