Assertion (A): Uttar Pradesh, the most populous State of India, is economically a backward State.
Reason (R): There is a marked disparity in the development levels in different parts of the State.
Select the correct answer:

A. Both (A) and (R) are true, and (R) is the correct explanation of (A)

B. Both (A) and (R) are true, but (R) is not a correct explanation of (A)

C. (A) is true, but (R) is false

D. (A) is false, but (R) is true

Answer: Option B