In a Lawsuit,a Woman Contends That a Congenital Malformation of Her

In a lawsuit,a woman contends that a congenital malformation of her child was due to her falling down on an icy sidewalk when she was in her eighth week of pregnancy (menstruation age) .How many weeks after fertilization (fertilization age) was the embryo at the time of the fall?

A) 4 weeks
B) 6 weeks
C) 8 weeks
D) 10 weeks
E) 12 weeks