11. True 12. True 13. False - Counterparts are opposites 14. False - a pedicure is a foot massage and beatification 15. False - tripods have three legs 16. False - this is a foot doctor 17. True 18. False - Contrary opinions are opposite or in disagreement 19. True 20. True
My guess would be A. By making sure you don't mix your word with the words of the source. To avoid plagiarism read your source but when you go to type or write your essay put it in your own words.