Answer the following question given this paragraph: 

Fertilization of an egg by a sperm in a fallopian tube produces a zygote. The zygote develops into a blastocyst, which implants in the uterus. The offspring then goes through the embryonic and fetal stages. The placenta supports the needs of the developing embryo and fetus. Birth generally occurs at about 38 months after fertilization.


Q: What is produced when an egg is fertilized by a sperm in a fallopian tube?

 Choices:

- uterus

- fetus

- ovaries

- zygote

A:
zygote
