Which of the following act–year pairs is correct? I. Child Marriage Restraint…

Colonial-era social-reform legislation in India is identified by the specific act and its exact year of enactment; a statement-based item of this kind is resolved by verifying each named act against its own historical enactment year, not by assuming a plausible-sounding year is correct.

• Child Marriage Restraint Act, 1929 (the Sarda Act): fixed the minimum marriage age at 14 for girls and 18 for boys, and was enacted in 1929 as stated — statement I's act-year pairing matches the historical record.

• Widow Remarriage Act: the Hindu Widows' Remarriage Act was enacted in 1856, sponsored by Ishwar Chandra Vidyasagar — the year 1858 given in statement II does not match the Act's actual enactment year.

Cross-checking chronology confirms this: the widow-remarriage reform (1856) predates the child-marriage restraint reform (1929) by roughly seven decades, and 1858 itself is a well-known year in Indian history for a different, unrelated law — the Government of India Act, 1858, which transferred control of India from the East India Company to the British Crown — not for any widow-remarriage legislation.

Since statement I's pairing is accurate and statement II's is not, only statement I is correct.