B is the answer to the question
Answer:
The answer is D
Explanation:
The sentence is, "the coach was able to make a stringent argument in support of better helmet technology." and Lani interpreted the word stringent as convincing or forcible. the best word to verify her understanding would be rigorously binding or exacting;strict
If you are asking what 9/11 was about, it was the day when the twin towers got hit by 2 planes, and was stated as a terroist attack.