I would say C. Was and eaten are both passive forms of language. I would go with C.
11. Fragment 12. Sentence 13. Sentence 14. Fragment 15. Fragment 16. Fragment 17. Fragment 18. Sentence 19. Fragment 20. Fragment (sorry if i get any wrong youll still have a passing grade though)
“the cost of public transportation at the current rate can really add up for a person who travels to work everyday” since the claim mentions work and payment, work and payment should be mentioned in the counterclaim as well