Read the following excerpt and identify the author's primary communicative purpose:

"Studies show that microplastics now contaminate coastal fish and shellfish harvested for domestic consumption. Without enforceable restrictions on single-use plastics and improved industrial effluent filtration, the accumulation of endocrine disruptors in the human food chain will accelerate exponentially."

The author's main purpose is to:

Answer and explanation

Correct answer: B. alert the public and advocate for regulatory policy reform

  1. Step 1: Analyze the rhetorical intention: the author presents disturbing empirical facts regarding food chain contamination and demands enforceable restrictions and improved filtration.
  2. Step 2: Classify the purpose as alerting the public and advocating for policy reform.
Answer
alert the public and advocate for regulatory policy reform.
Why not the others: 'entertain readers with fascinating maritime curiosities' mischaracterizes a grave health hazard as amusement; 'persuade consumer groups that microplastics are harmless' directly contradicts the author's warning; 'promote the commercial sales of synthetic plastic polymers' asserts the opposite of the author's argument.

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