B. They both use the third-person omniscient point of view to examine the thoughts of different characters.
Both passages provide insight into the thoughts and feelings of their respective characters—Framton Nuttel in "The Open Window" and Rosemary in "A Cup of Tea"—suggesting a broader understanding of the characters’ motivations and emotions beyond their immediate actions. Therefore, B is the best choice to compare the narrators’ points of view in the two texts.