Under Article 368, some provisions require amendment by a special majority of Parliament, while others require a special majority plus ratification by at least half of the state legislatures. Provisions requiring state ratification are generally those affecting the federal structure. Let's classify the given items by their amendment procedure: - Items requiring State Ratification: i (Extension of executive powers), ii (Supreme and High Court), iii (Election of President), vii (Distribution of Legislative powers), viii (States representation in Parliament). - Items requiring Special Majority only: iv (Qualification of President), v (Condition of the Office of the President), vi (Tenure of President).Now let's examine the options: A) i ii iii: All require State Ratification. This is a "matched" set procedurally. B) ii iii iv: ii and iii require State Ratification, iv requires Special Majority. This is an "unmatched" set. C) iii iv v: iii requires State Ratification, iv and v require Special Majority. This is an "unmatched" set. D) iv v vi: All require Special Majority. This is a "matched" set procedurally. E) vi vii viii: vi requires Special Majority, vii and viii require State Ratification. This is an "unmatched" set.Options B, C, and E all contain a mix of items requiring different amendment procedures, making them "unmatched" sets. However, option C groups together three items (Election, Qualification, Condition) all related to the office of the President, while simultaneously demonstrating the procedural difference (Election requires state ratification, Qualification/Condition require only special majority). This internal procedural variation within a conceptually related group (President's office) likely makes option C the intended "unmatched" set.