The most effective revision is the last one, “it is a good idea to brush and floss your teeth at least twice a day in order to avoid cavities, gum disease, and bad breath.”
Friday's traits which Crusoe find admirable is:
A. His gratefulness, as shown when Crusoe saves his life.
After rescuing one of the Natives of the Island, Crusoe starts to converse with him so that he can know about him and his native people. He named him Friday and started making strategies through which he can teach him the way of living. He taught him to speak some words of English, the way to clothe oneself, the eating habits and to call him his ‘master.’ Crusoe noticed that it was easy for him to educate Friday through religious patterns. He tells him about God and his creations with whom Friday easily related his own deity Benamuckee.
Hello. Unfortunately your question is incomplete, which does not allow it to be answered. However, from the context of your question it is possible to assume that you want to know which of the two doctors is using the correct approach. If this is the case, we can say that Dr. Jayson is correct, as he is offering his patients a scientifically proven drug that will not harm patients, but will help them to treat any problem. Dr. Yuri can only try the new drug on patients if they agree to participate in this research, otherwise it would be unethical and dangerous.
U.S. Victory - Vietnam
Soviet/communist victory - Cuba
(C) makes most sense to me :) hope this helps