A would be the sentence with a confusing antecedent, because the "he" could have been referring to "Uncle Arthur" or "Benjamin."
Answer:
Louise Mallard is a dynamic character. Although the story takes place in the duration of just an hour, she undergoes significant character changes and growth. Chopin develops Louise’s character primarily through internal thoughts. She gives us a vivid picture of Louise’s psyche—all her thoughts and feelings are laid bare.
This post of view is a person's thoughts, which is first person. First person is the reader reading as the character, and that's how this introductory line is written.
C.
The right answer is B because it shows the work that they did to earn their money.