I think the answer is A. Hope this helps !!
At 18 weeks the baby can start to hear sound.
Esophagus is the correct answer.
The answer is the Bartholin's glands
Genetic and Non-Genetic Risk. Complex diseases do not have a single cause; it is the interaction between your genes, environment and lifestyle that ultimately cause complex diseases to occur. Examples of complex diseases are cancer, heart disease, and diabetes.
