A metaphor is a figure of speech that, for rhetorical effect, directly refers to one thing by mentioning another. The author is directly referring to the public as swine by using the word "are". The author is also directly referring to advertising as the rattling of a stick inside a swill-bucket, by using the word "is"
Whenever repetition is used, it is used to bring attention to the main point, and to make it more memorable in the listener's minds. This makes you remember this phrase more, and makes you more likely to agree with it.
Which of the following is true whether you use a direct
quote or an indirect quote?
The only true whether to use a direct quote or an
indirect quote is that ‘You must use quotation marks to indicate the evidence.’
The answer is letter A.