Sentence C has a misplaced modifier because the phrase "with her hands" is misplaced and is confusing to the reader. Modifiers are words or phrases that provide information to the reader, however, this phrase is misplaced and adds confusion to the sentence.
I’ll try to help my best “ a troubled mind caused me to walk abroad” i think he means while his mind is troubled or he has a lot on his mind he is pacing as one would tend to do when stressed
The most crucial to a reader's understanding of an expository text would be how effective the text is written to convey a clear and concise idea to the reader. It should be able to penetrate a reader's comprehension well and establish a clear way to get the point across.
