Four types of notes a researcher might write

If one writes logically, he will prove his point. is this sentence correct or contains an unwarranted shift in person?

Realism was a fairly influential and widespread literary movement in the united states in the latter half of the nineteenth century. which american writer is among the pioneers of american realism? a. ernest hemingway b. f. scott fitzgerald c. j. d. salinger d. mark twain

"alice wondered a little at this, but she was too much in awe of the queen to disbelieve it".what is the effect of the author's word choice in this sentence?