Assertion (a): plasma membrane is selectively permeable to some molecule present on either side of it. reason (r): neutral solutes may move across the membrane by the process of simple diffusion.
(a)Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
(b)Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
(c)Assertion is correct but Reason is incorrect.
(d)Both Assertion and Reason are incorrect.