Sylvia has these thoughts about Buck after reading The Call of the Wild. 1. Buck learns that he must obey the man with the club if he wishes to survive. 2. Buck learns that, even among the dogs on his team, there can only be one true leader. 3. Buck learns that he must be careful around certain animals because he could be killed like Curly was killed. Based on these thoughts, which thesis statement would be most appropriate for a literary analysis of themes within the novel?