Study the statement given below and answer the question. "Vigorous contraction of the 'X' at the end of the 'Y' causes expulsion of the foetus." Identify X and Y.

Options

A. X-Vagina, Y- Fertilization
B. X- Uterus, Y - Pregnancy
C. X-Placenta, Y - Implantation
D. X- Embryo, Y - Ovulation

Answer

B