Which mother is at greatest risk of having a child with a chromosomal abnormality?

I believe the answer is: a 40-year-old mother
Chromosomal abnormalities refers to a condition when the mother failed to assign proper DNA sequence to the infant.
For average women, the chance of getting chromosomal abnormalities would increase significantly after she passed the age of 35.

This question is an opinionated one, and we don’t know anything about the module or anything, thus we can not answer it. but if you are having trouble on what it is asking basically it is just asking to (using your knowledge on the topic) say which topics you were most interested and which were the most challenging.hope this : p