The embryonic stage of pregnancy lasts from _______.
A8 weeks after conception to birth
B2 days after fertilization to 8 weeks
C2 weeks after conception to 8 weeks
D2 days after implantation to 8 weeks
A8 weeks after conception to birth
B2 days after fertilization to 8 weeks
C2 weeks after conception to 8 weeks
D2 days after implantation to 8 weeks