Assertion: Leydig cells surrounding the seminiferous tubules are endocrine in nature.
Reason: They secrete testosterone hormone which initiates the process of spermatogenesis.
(a) Assertion and Reason are true, Reason is the correct explanation of Assertion.
(b) Assertion and Reason are true, Reason is not the correct explanation of Assertion.
(c) Assertion is true, Reason is false.
(d) Both Assertion and Reason are false.