What is one of the author's purposes in writing this piece? A. to convince people that plastics should not be used B. to persuade people to use only certain types of plastics C. to inform people about the negative impacts of plastic pollution D. to educate people about why plastic is the most harmful pollutant

The correct answer is (C) to inform people about the negative impacts of plastic pollution.

Explanation:

The author's motive on this passage explains the negative effect of plastic and the types of plastic that spoils or pollute the environment. It's a report that is viewed as descriptive with regards to the effects of plastic.

The option (A) is not correct because the author never talked about good types of plastic.

For the option (B) the author did not go further in explaining it's harmful effects in the environment.

For the last option (D) the author writing piece was based on real life purposes, not on emotions or logic.