The correct answer is C. A person should be grateful for companionship
Step-by-step explanation:
In almost any literary work including novels such as the "Adventures of Robinson Crusoe" a theme refers to a belief or idea the author of literary work aims at communicating to the audience, that is related to some aspect of life such as love, death or friendship and implicitly stated through the actions or values of the characters. In the case of the excerpt presented the main character Robinson Crusoe is acknowledging the way Friday, another character was "faithful, loving, sincere servant" as he was loyal and serve Crusoe in a way any other man would. This means the perspective and beliefs of Cruso implicitly show the importance of appreciating Friday's companionship and therefore this excerpt supports the theme or idea that " A person should be grateful for companionship".