Correct Answer: fundamental duty

Solution : The correct option is a fundamental duty .

Respect for the national flag and national anthem is the fundamental duty of every citizen. It is also a symbol of patriotism and allegiance to one's country. It signifies a collective commitment to the values and principles of the nation. It is a way to honour the sacrifices made by those who fought for the country's independence and a means to express one's love and loyalty to the nation.