Read both Assertion (A) and Reason (R) and give the correct answer:
Assertion (A): It is the duty of the state to devise and implement a coherent and co-ordinated programme to meet its obligation of Sustainable Development.
Reason (R): Adherence to the principle of Sustainable Development is now a Constitutional requirement.

A. Both A and R are correct and R is the correct explanation of A

B. Both A and R are correct but R is not the correct explanation of A

C. A is correct but R is wrong

D. A is wrong but R is correct

Answer: Option A