The correct option is B About 1/3 distance from the anterior end of the body midventrally
Female reproductive organs consist of ovaries, oviducts, uteri and vagina. Ovaries are long, thread-like and highly twisted and lead to broader oviducts. Each oviduct continues into still broader and muscular uterus. The first part of uterus serves as seminal receptacle where sperms are stored and fertilization occurs. The two uteri unite and open into a short median, muscular vagina that opens by a transverse gonopore to the outside. It is situated about 1/3 distance from the anterior end of the body midventral.