Assertion (A) The United Nation's Inter-governmental panel on climate change has concluded that there is a discernible human influenceon the global climate.
Reason (R) The United Nation's groups conclusions are unformed; some experts differ and say that a reliable estimate of the human imprint's magnitude remains a distance off.

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

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

C. (A) is correct, but (R) is incorrect

D. Both (A) and (R) are incorrect

Answer: Option B