Question

where does fertilization of an egg usually occur?
a pelvic cavity
b uterus
c vagina
d uterine tubes

Explanation:

Fertilization is the process where a sperm and an egg fuse. The uterine tubes (fallopian tubes) are the site where this usually occurs. The pelvic cavity is a general body cavity area. The uterus is where implantation (if fertilization is successful) and fetal development occur. The vagina is the birth canal and the organ through which sperm enter the female reproductive tract but is not the site of fertilization.

Answer:

D. Uterine tubes