Answer:
The statements that indicate an informal tone that is inappropriate for an academic paper are:
When you think about it, this poem is really crazy.
I can't believe that people think that this writer's talented.
This book should be avoided like the plague it's so bad.
Explanation:
Academic papers demand a more formal tone that confers more objectivity to them. They avoid using the first person, expressing subjective opinions, and using an overall informal, colloquial language. The purpose is to present information via an impersonal tone. Among the sentences we were provided for analysis, there are three that present a personal opinion of the speaker in quite a colloquial manner, using everyday language to convey a subjective perspective:
When you think about it, this poem is really crazy.
I can't believe that people think that this writer's talented.
This book should be avoided like the plague it's so bad.
The intro. should have a strong overview of your speech/essay that will convince the audience.<span />
The question ask to choose among the following choices that best answer that could fit and support the statement in your question, and based on my further analysis about it, I came up with an answer of letter D. Substance. I hope you are satisfied with my answer and feel free to ask for more