Read the following statements and find out the incorrect statements.
a. Each testicular lobule contains one to three highly coiled seminiferous tubules in which sperm are produced.
b. Each seminiferous tubule is lined on its inside by two types of cells called Leydig cells and Sertoli cells.
c. The region outside the seminiferous tubules called interstitial space, contain small blood vessels and male germ cells (spermatogonia) which lead to sperm formation.
d. In testis immunologically component cells are also present.
e. The seminiferous tubules of the testis open into the rete testis through vasa efferentia.