B., “the bends” is known as decompression sickness that occurs in scuba divers when dissolved gasses come out of the solution in the bloodstream, forming gas bubbles in the circulation. this relates to the paragraph above.
Answer:
Main Points:
Having, showing, or done with courage.
Give examples providing that it is about things that are done with courage.
Tell what it means to be courageous (It helps others to whom you are facing or what you've done to overcome your fear.) <------- provide lots of details.
Answer:
No,they will not state the central idea directly.