It isn't informing the readers how swimming lessons can be expensive, it never said that in this sentence.
it doesn't really entertain readers with a fun suggestion about swimming, entertainment is more like a book about an adventure other than someone giving information about swimming.
The author never said he had a swimming class and specifically said "...some lessons at your local pool". you can be located anywhere and it doesn't say to join his swimming lessons, it doesn't even say he has his own class to take swimming lessons.
C just makes the most sense because yes it is persuading, the author gave reasons why you could take lessons and the other answers are less true than this.
Skiff Miller wanted to take the dog back and go to Alaska with him i guess but to do this he would have to take it from the couple that took the dog in and took good care of it. Skiff Miller must have gotten attached to the dog and felt a sense of love and yeahh
<span>4. But from all that I have been able to learn of cholera, both from my own observations and the descriptions of others, I conclude that cholera invariably commences with the affection of the alimentary canal.