In which part of the female reproductive system does fertilization take place?

The phenomenon of fertilization was first perceived by

$A$: Fertilizins are glycoproteins present on the surface of the egg membrane.
$R$: They help in the agglutination reaction by interacting with anti-fertilizins on the sperm surface to facilitate fertilization.

Fertilisation in humans is practically feasible only if

The part where fertilization of the ovum takes place in rabbits,humans,and other placental mammals is:

Which of the following secretes fertilizin?