The elements that represent elements of an author's style are the sentence length, the language used, syntactical structure and rhetorical devices. Using rhetorical devices is a way of using effective expression or assertive text that aims to change the reader's mind or make the reader support the author's point of view. Sentence length is important because reading long convoluted sentences is off-putting to the reader. If the sentence structure is too short, however, it causes a stilted flow and the reader won't enjoy reading what the author has written either.
<span>I believe B. Understatement</span>
I think first sentence and last two. The first one is appealing to a pet owner's feelings of wanting to be a good pet owner and the merchant is using that to persuade them to buy the biscuits. The last two sentences are appealing to a person's feelings of loneliness or being left out and using that to convince you to buy a pool. They both appeal to people's emotions in order to persuade them towards action, that's what it means to use pathos.
Almost positive the answer is to count on.