Match the following columns:

Column-$I$	Column-$II$
$(1)$ Testis	$(a)$ Provides nutrition to sperms
$(2)$ Ovary	$(b)$ Primary male sex organ
$(3)$ Theca interna	$(c)$ Synthesis of testosterone
$(4)$ Sertoli cells	$(d)$ Synthesis of estrogen
$(5)$ Leydig cells	$(e)$ Primary female sex organ

Match the following columns and select the correct option.

Column-$I$	Column-$II$
$(a)$ Placenta	$(i)$ Androgens
$(b)$ Zona pellucida	$(ii)$ Human Chorionic Gonadotropin $(hCG)$
$(c)$ Bulbo-urethral glands	$(iii)$ Layer of the ovum
$(d)$ Leydig cells	$(iv)$ Lubrication of the Penis

Which one of the following statements about sex hormones is correct?

Consider the following four statements $(A-D)$ and select the option which includes all the correct ones only.
$(A)$ The male sex accessory ducts include rete testis,vasa efferentia,epididymis and vas deferens.
$(B)$ Leydig cells synthesise and secrete testicular hormones called androgens.
$(C)$ The female reproductive system is located in the pelvic region.
$(D)$ Each testis has about $250$ compartments called testicular lobules.

The hormone that maintains the secretory activity of the corpus luteum as well as the increase in the size of the mammary glands is

Could the number of eggs or young ones produced by an oviparous and viviparous mother be equal? Why?