(A) In mitochondria inner layer has many folding which is known as cristae.
(R) In cristae ETS occurs
(a) Assertion (A) and Reason (R) both are true and reason (B) is correct explanation of the assertion A.
(b) Assertion (A) and Reason (R) both are true but reason B is not a correct explanation of the assertion (A)
(c) Assertion (A) is true but Reason (B) is false.
(d) Assertion (A) is false but Reason B is true.