Explanation:

- Article 13(3) of the Constitution of India defines 'law' for the purposes of Article 13.

- It covers “any Ordinance, order, by-law, rule, regulation, notification, custom or usage” having the force of law in India before the Constitution commenced.

- So, it includes both statutory law (written law passed by legislature) and customs or usages having the force of law.

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- Option 1: Only statutory law — Not fully correct, as customs/usages are also included.

- Option 2: Customs and usages only — Not fully correct, as statutory law is also included.

- Option 3: Both ‘A’ and ‘B’ — Correct. It covers both statutes and customs/usages.

- Option 4: None of the above — Incorrect.

Correct Answer: Option 3 ‘Both ‘A’ and ‘B’