Assertion: The scrotum helps in maintaining the low temperature of the testes. Reason: The low temperature of the testes is necessary for spermatogenesis. (1) Assertion and Reason are true and Reason is correct explanation of Assertion (2) Assertion and Reason are true, but Reason is not the correct explanation of Assertion (3) Assertion is true, but Reason is false (4) Assertion is false, but Reason is true