Which of the following best paraphrases the underlined sentence in paragraph 4?

A. Farmers can now leave plastic mulch in fields after use, as it naturally decomposes over time.

B. Switching to biodegradable mulch is encouraged, but cost remains a challenge for many farmers.

C. European regulations now allow farmers to use biodegradable mulch without harming the soil.

D. Strict environmental rules ban non-biodegradable mulch to prevent long-term soil pollution.

Ms Tra My_E12_Part 2_Đề tinh tuý 11