Fertilization in human female takes place in:

Ampullary region of fallopian tube

The correct answer is Option (3)- Ampullary region of fallopian tube

After ovulation, when an egg (ovum) is released from the ovary, it travels through the fallopian tube. If intercourse has taken place around the time of ovulation and sperm are present in the female reproductive tract, fertilization often occurs in the fallopian tube when a sperm successfully penetrates and fuses with the egg. During copulation (coitus) semen is released by the penis into the vagina (insemination). The motile sperms swim rapidly, pass through the cervix, enter into the uterus and finally reach the ampullary region of the fallopian tube. The ovum released by the ovary is also transported to the ampullary region where fertilisation takes place. Fertilisation can only occur if the ovum and sperms are transported simultaneously to the ampullary region. This is the reason why not all copulations lead to fertilisation and pregnancy.

Once fertilization occurs, forming a zygote (fertilized egg), the zygote begins to undergo cell divisions as it moves toward the uterus, where it eventually implants into the uterine lining and continues its development.