I believe A would be the best answer. In the question, it states that Shawn has trouble understanding the ideas. So, rephrasing the ideas in his own words would help.
I hope this helped u!
Answer:
I don't see the point for an experiment like this tho...
Explanation:
Safety tube for the water
Answer:
(hyperbole)
Explanation:
exaggerated statements or claims not meant to be taken literally.
The linking verb is "could have"