Read this excerpt from "a student's guide to global climate change." climate change poses risks for cities near the ocean. places like miami; new york city; new orleans; and venice, italy, could flood more often or more severely if sea level continues to rise. if that happens, many people will lose their homes and businesses. what can people do about it? coastal cities can prepare for climate change by protecting or restoring natural shoreline buffers like sand dunes and wetlands, improving storm drainage systems, and building protective barriers where necessary. based on the excerpt, what conclusion can be drawn about protective barriers? they should be built along coastal communities. they should be built where natural barriers are missing. they are the same as natural barriers. they are usually unnecessary along shorelines.

I think it is B They should be built Where natural barriers are missing

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They should be built where natural barriers are missing.

Explanation:

Netherlands and cities near the sea suffer from many flooding problems at times when the sea level is high. In addition, as a result of climate change, we know that the Antarctic foothills are melting and adding water at sea level, causing residents of low-lying countries and cities near the sea to be concerned about possible flooding.

Flooding causes many economic and emotional problems, and can cause illness and drowning, which allows us to state that flooding is life-threatening. To avoid these problems, residents of these regions need to build protective barriers in places that do not have natural barriers such as slings and swamps. Protective barriers aim to reduce or prevent the advance of water to urban areas, thereby ensuring the safety of citizens.

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explanation: