Assertion (A) : Biogas is produced from the dung of cows and buffaloes Reason (R) : Methanogens are present in the gut of ruminant animals and they are responsible for the production of methane from their dung. Regarding (A) and (R)

Question

( a ) Both A and R are correct & R is the correct explanation for A
( b ) A is incorrect but R is correct
( c ) Both A and R are correct but R is not the correct explanation for A
( d ) A is correct but R is incorrect