According to Article ___________ of the Constitution of India, it shall be the duty of every citizen of India to develop the scientific temper, humanism and the spirit of inquiry and reform.

Correct option is D

The correct answer is (d) 51A
 Article 51A of the Constitution of India states that "It shall be the duty of every citizen of India to - (h) develop the scientific temper, humanism and the spirit of inquiry and reform."
 Article 51A deals with the Fundamental Duties in the Indian Constitution.
 The Fundamental Duties in the Indian Constitution were added by the 42nd Constitutional Amendment Act 1976.
 There are 11 fundamental duties as per the Indian Constitution:
1. Abide by the Constitution and respect the national flag & National Anthem.
2. Follow the ideals of the freedom struggle.
3. Protect the sovereignty and integrity of India.
4. Defend the country and render national services when called upon.
5. Uphold the spirit of common brotherhood.
6. Preserve the composite culture.
7. Preserve the natural environment.
8. Develop a scientific temper.
9. Safeguard public property.
10. Strive for excellence.
11. It is the duty of all parents/guardians to send their children in the age group of 6-14 years to school.