Read the following passage, then answer the question.
"Microplastics are tiny plastic fragments less than 5 millimeters in size. They enter the environment through multiple pathways: the breakdown of larger plastic waste, synthetic clothing fibers released during washing, and microbeads found in personal care products. Microplastics have now been detected in oceans, rivers, soils, drinking water, and even human blood. While research is ongoing, scientists are concerned about potential health effects including inflammation and chemical toxicity, particularly as plastics often carry harmful additives."
Which sentence from the passage best supports the idea that microplastics are a widespread problem?
- AMicroplastics are tiny plastic fragments less than 5 millimeters in size.
- BThey enter the environment through multiple pathways.
- CMicroplastics have now been detected in oceans, rivers, soils, drinking water, and even h…
- DResearch is ongoing about potential health effects including inflammation.