Answer:
Marilla grows anxious.
Explanation:
Here in the story: "Thereupon Anne held her tongue so obediently and thoroughly that her continued silence made Marilla rather nervous, as if in the presence of something not exactly natural.", shows that Marilla grows nervous when Anne didn't talk.
A) The urbanization of the United Stats quickened due to technology improvements.
-This whole paragraph is on the subject of how technology quickly urbanized the United States. All of the other answers are factors that caused this to happen.
Hope this helps!
A, a suffix. here- have a motivational fluffy child.