The correct answer is option 3, Article 51A of the Indian Constitution includes the Fundamental Duties of the Indian citizens. It is important to note that the Indian Constitution does not initially include the Fundamental Duties, but they were added through the 42nd Amendment Act in 1976. These duties are non-justiciable in nature, meaning that they cannot be enforced by the court of law. The Fundamental Duties serve as a reminder to citizens about their responsibilities towards the nation and encourage them to uphold the values and principles of the Constitution. They cover a range of duties including respecting the national flag and anthem, promoting harmony and the spirit of common brotherhood, protecting the environment, and striving towards excellence in all areas of individual and collective life.