B. An ecosystem in which plant roots are submerged during parts of the years
Read the question fully.
Think about a severe weather situation you have experienced near your home or have witnessed on the news.
The question is asking you to tell about any severe weather that you have seen, heard, or you've experienced about and just tell them about it.
The answer to this is passive hyperemia.
Answer:
I'm pretty sure the first one is c. The second one is b.
Explanation: