In<br/>testis, spermatogenic cells exclude() A: spermatogonium B: primary spermatocyte C: Supporting cells D: Secondary spermatocyte E: Spermatid

Which of the following cells in the testis contain the most smooth endoplasmic reticulum?() A: Spermatogonium B: Leydig cell C: Smooth muscle cell D: Sertoli cell E: Spermatid