“growing in the backyard” is correctly placed. If you were to rearrange the sentence, it wouldn’t make sense. Therefore, making the placement of that statement correct.
The sentence needs to flow and be easy to read for it to have no mistakes and for the statement to be correctly placed so that the sentence,
<h2>Hello there! Coco Here!</h2><h2>UwU UwU UwU UwU UwU UwU</h2><h3>Answer: D</h3><h3>The paragraph needs to and should have added "How his grandparents influenced his storytelling skills." </h3>