Solution:Article 51A of the Indian Constitution, introduced by the 42nd Constitutional Amendment Act, 1976, enlists the Fundamental Duties of every citizen.
The duties are arranged in a specific sequence. The relevant duties in the question appear in the following order in the Constitution:
A. Respect the National Flag and National Anthem (Article 51A(a))- This duty obligates every citizen to respect the ideals and symbols of the nation, including the Constitution, the National Flag, and the National Anthem.
B. Cherish the ideals of the National Freedom Struggle (Article 51A(b)) - Citizens are to uphold the noble values and sacrifices that led to India's independence.
C. Uphold Sovereignty and Integrity of India (Article 51A(c)) - Citizens must protect India's unity and integrity.
D. Defend the country when called upon (Article 51A(d)) - Every citizen is expected to stand for the defense of the nation whenever the situation demands.
Hence, the correct sequence in Article 51A is (a), (b), (c), (d) i.e., A, B, C, D.