The reason that does not make a case for the value of proposed solution is that "it is effective in solving the problems." As always, the simplest explanation is the usually the best solution. This reasoning is lined with principle of plurality and the principle of parsimony.
Honestly if I were you I would chose either C or B. Sentence fluency is the rhythm and flow of a essay or what ever is being written. I helps the reader follow along with the piece so they stay interested and wanting to read more. So C would probably be your best answer.
A sentence with the word "apple" in it could be:
"My sister and I love to eat an apple with our snack."
Hope I helped!
- Debbie
I don’t know what the author wrote because so don’t have a picture or context