The correct answer would be option B, have had more exposure to harmful environmental influences, leading to faulty cell division.
This is because the 40 year old woman is more likely to have had more exposure to harmful environmental influences, leading to faulty cell division
Explanation:
Down Syndrome is Congenital Disorder. This disorder arises due to a chromosomal defect.
This defect or disorder can produce physical abnormalities as well as intellectual impairments. The people with this syndrome are affected both physically and mentally.
People with Down Syndrome are usually short stature with a broad facial profile.
So when a woman at or above the age of 40, conceives, she has been exposed to the outer environment for a longer period of time, and that may cause faulty cell division, which will lead to different problems and Down Syndrome is one of those.
Learn more about Down Syndrome at:
https://brainly.com/question/8209648
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