The correct answer is option 3, which states that the fundamental duties that are not related are 3 and 4. Now, let`s dissect each option to better understand why this is the correct answer.

Option 1 states that "To cherish and follow the noble ideals which inspired our national struggle for freedom" is a fundamental duty. This is related to the fundamental duty because it emphasizes the importance of appreciating and upholding the values and principles that led to India`s independence.

Option 2 states that "To value and preserve the rich heritage of our composite culture" is a fundamental duty. This is related to the fundamental duty because it highlights the significance of valuing and safeguarding India`s diverse cultural heritage.

Option 3 states that "To promote the educational and economic interests of the weaker sections of the people, especially the Scheduled Castes and Scheduled Tribes" is a fundamental duty. This is related to the fundamental duty because it underscores the importance of supporting and uplifting the marginalized and disadvantaged communities in society.

Option 4 states that "To protect all monuments of historic interest and national importance" is a fundamental duty. This is related to the fundamental duty because it stresses the need to preserve and safeguard India`s historic and culturally significant monuments.

Based on the dissection of