She is supporting an inference from the text. An inference is something that is implied, and the person saying they've "witnessed much fighting" infers that they're old, whereas "I am wounded with iron" can be taken to mean he's been wounded by a weapon like a sword.
All of them are really bad answers but out of all b or none of the above if thats a option <span />
Answer:
topic sentence, the developing details, and a concluding sentence.
I think the answer may be “it helps the reader understand how precise the dive was”
The decision you would most likely make on your own is D) the music you listen to when you study.
All the other options are influenced by somebody else's opinion, whereas in D) you make the choice on your own.