The following questions consist of two statements each : assertion (A) and reason (R). To answer these questions, mark the correct alternative as directed below :
(a) If both A and R are true and R is the correct explanation of A.
(b) If both A and R are true but R is not the correct explanation of A.
(c) If A is true but R is false.
(d) If both A and R are false.
Assertion : The excreta of cattle is used for the generation of biogas, commonly called gobar gas.
Reason : Methanogens, which grow aerobically on cellulose material help in the production of gobar gas.
