I would probably say that the author used diction to achieve some kind of effect in the first sentence.
A. The teacher stood at the door smiling brightly and welcoming each student to her classroom on the first day of school.
The author's diction, or word choice, in this sentence portrays the teacher as a nice, kind, caring person.
C. makes more sense because it is integrated and emphasized more than nonverbal communication
Answer: Set in the early 1900s, Lowry's (Number the Stars) lyrical novel unspools at a leisurely pace through the eyes of Katy, who wishes to follow in the footsteps of her doctor father. As the narrator chronicles the pivotal year she turns nine, she describes the unlikely friendship she develops with a "touched" farm boy.