The author's likely purpose is to contrast what has been reported about plastic trash with what is really happening in the vortex. (third option)
Texts and speeches have a purpose, that is, a reason or intent. Most can be categorized as having the purpose to inform, persuade, or entertain the audience. Inside a text, each paragraph can also serve a specific purpose.
In paragraphs 7 and 8 of "Plastic: A Toxic Love," the author's purpose seems to be to contrast the reports about plastic trash with reality. To contrast means to show the differences between two things or ideas.
The missing answer choices for this question are the following:
Learn more about purpose here:
https://brainly.com/question/25871446