The sentence which best conveys the argument is that adopting from an animal shelter is humane and saves lives. (option D)
What is argument?
An argument can be defined as a reason given to support a certain claim with the purpose of persuading one's audience to agree with one's opinion.
In the text "The Case of Shelter Animals," the author's argument is best expressed by option D. The author explains that pet stores sell puppies from puppy mills, which means the conditions are inhumane. Shelters, however, freely provide animals that were naturally born, so they are humane.
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