Assertion: The regions outside the seminiferous tubules are called interstitial spaces, which contain Leydig's cells.
Reason: Leydig's cells synthesise and secrete testicular hormones called androgens.

Answer

B

Explanation

Each seminiferous tubule is lined on its inside by two types of cells called male germ cells (spermatogonia) and sertoli cells. The regions outside the seminiferous tubules called interstitial spaces, contain Leydig's cells. Leydig's cells synthesise and secrete testicular hormones called androgens.