Why could the author not afford to lose all of her sight?

Choices:
A. not enough information
B. because she was a mom of two children ages 2 1/2 and 6 months
C. because she needed to study for finals
D. she needed to be able to drive
because she was a mom of two children ages 2 1/2 and 6 months
I lost sight in one eye when in college, I had two preschool children at the time. I was walking through the house one morning and suddenly I could see NOTHING out of one eye. When I told my husband,who was right there when it happened, he assumed my eye was just blurry or something had gotten in the eye. He took me to the ophthalmologist who verified that I could not see out of the eye. Then we subsequently got the worse news that it was a neurological condition with a long name I do not remember that there was nothing he could do about. He said that I would either get my sight back or I you and all we could do was wait and see if it came back. This was right before finals that semester but he told me I absolutely could not be studying or using my good eye for reading or basically anything that would strain it or I could end up losing sight in that eye also. Needless to say, as a mom of two children ages 2 1/2 and 6 months,I could not afford to lose ALL of my sight! So, I had to wait. I could not drive like that either which made matters worse. Both my husband and I were in school fulltime (until then), fortunately it was the end of the semester, unfortunately it was BEFORE finals. My sight did come back but not for about 5 months. When it first started to come back I still couldn't drive because although I could see I did not have my peripheral vision, that did not fully come back for quite a while. I cannot imagine it a person who goes totally blind goes through, I just know for me it was not an easy to to go through.