True, an expecting mother's STI can put the life of the unborn baby at risk.
STI stands for sexually transmitted infections, such as HIV and hepatitis B. Both of those can affect an unborn baby if the mother has it. The risks of every unborn baby vary. One risk could be death, blood infections, deafness, or blindness.
Based on my research, the answer that I have found from similar questions from credible sites (coursehero, to cite one), the answer to this question is a). binge drink.
Joya is 22 years old. Statistically, she is most likely to binge drink. I hope this helps you.