It shall be the duty of every citizen of India to protect and improve the natural environment . This statement refers to which of the following Articles of the constitution of India?

It shall be the duty of every citizen of India to protect and improve

1.	It shall be the duty of every citizen of India to protect and improve the natural environment . This statement refers to which of the following Articles of the constitution of India?
A.	Article 21
B.	Article 48 A
C.	Article 51 A
D.	Article 56
Answer» D. Article 56