Answer:
The correct option is D;fragment error if not A: comma-splice error
I hope this helps you!
(P.s:Please mark me as brainlyest)
Explanation:
After being alone for 20 years that I could not understand. What you can do to make it a correct is reverse the sentence (add a word like something[this is optional]) " Something that I could not understand,after being alone for 20 years.." than you could add the rest of your sentence
