- Option A is correct: Fundamental duties were added to the Constitution by the 42nd Amendment Act, 1976, based on the recommendations of the Swaran Singh Committee. They were not part of the original Constitution. - Option B is correct: Article 51A(i) lists "to safeguard public property and to abjure violence" as one of the fundamental duties. - Option C is correct: Fundamental duties are not directly enforceable by courts through writs like Fundamental Rights are. - Option D is incorrect: The Supreme Court has held that courts can refer to fundamental duties while testing the constitutionality of a law. If a law seeks to implement a fundamental duty, it can be considered reasonable and thus constitutional.