Which of the following are required for fertilization to occur inside the female body?

a Sperm must swim into an oviduct.

b An oocyte must be present in the oviduct.

c The nucleus of a sperm must fuse with an oocyte nucleus.

d all of these

d all of these

Fertilization is where the egg cell of the females meet the sperm cell of the males, Further it is even a step by step process, stated in the provided options.

Considering that the female and male sex cells are present

1. Sperm must swim into an oviduct.

2. b An oocyte must be present in the oviduct.

3. c The nucleus of a sperm must fuse with an oocyte nucleus.