This would be "Rising Action." Most problems happen here.
Think of it in movies. Your ACTION is because of a CONFLICT two characters are having.
Answer: A stanza is to poetry like a paragraph is to a <u><em>story</em></u>.
Explanation: a stanza is almost like a paragraph the poetry is like a story so that's why <u><em>story</em></u> is the answer.
The correct answer for the question that is being presented above is this one: "Looking through the boat's glass bottom, we saw brightly colored fish and even a small shark swim past us." The sentence that has a mismatch between subject and modifier is this "<span>Looking through the boat's glass bottom, we saw brightly colored fish and even a small shark swim past us."</span>