(C) Uterus
The fertilised egg (zygote) travels to the uterus, where it is implanted in the uterine lining, which thickens and is richly supplied with blood to nourish the growing embryo.
Source: Chapter 7, Section 7.3.3(b) — Female Reproductive System
The key fact: fertilisation occurs in the oviduct (fallopian tube), but implantation occurs in the uterus. Examiners often test this distinction. Do not confuse the two locations. Options A (oviduct) is where fertilisation happens, not implantation.