While metonymy replaces a concept or object entirely with a related term, synecdoche takes an element of the object and uses it to refer to the whole, and metaphor uses unlike things to draw an interesting comparison. For example, the wheels are one part of a car.
Given that the plot is set in the nineteenth century, and that it is pretty realistic, I can safely conclude that the correct answer is 'realism'. The other answers don't fit, theme-wise, and the era they originated in: classicism and romanticism were before the 19th c., and postmodernism started in the 20th.
Her mother?
Her sister?
Or her friend?
Answer:"It isn't fair, it isn't right," Mrs. Hutchinson screamed, and then they were upon her.
Explanation:
Mrs. Hutchinson screams at no one in particular.
Mrs. Hutchinson expresses her feelings indicating that the ritual is not fair.
“It” indicates that she is only fighting against a single person.
“[T]hen they were upon her” is society coming upon her.