D. Explain to the reader why plastic bags are a necessary evil due to the inefficiency and high cost of other environmentally friendly solutions.
The text is promoting us to stop using plastic bags because they pollute the environment. These types of exercises are "<u>reading comprehension</u>".
<h3><em><u>MissSpanish</u></em></h3>
Answer:
It's C and D (The last two)
Explanation:
Because "has" and "he" are directed to a person, in this case "has" goes to someone you are talking to and "he" to yourself.
And yet "hay" or "había" does not go to someone in particular.