In order to clean up the plastic and pollution in the oceans, The Ocean Cleanup, a nonprofit foundation, has introduced The Interceptor 006, a barricade to prevent “trash tsunamis” in the Rio Motagua from entering into the Caribbean Sea. The barricade would capture plastic with heavy-duty floating booms on the surface of the water and ____ water to flow freely below the surface through the fence.
Which choice completes the text so that it conforms to the conventions of Standard English?
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