The correct answer is C. Third-person omniscient
In literature, the point of view refers to the angle from which the events in a story are told. Most common points of view, which are also classified as types of narrators include first-person in which the events are told using pronouns such as "I" or "We", second-person in which the narrator involves the reader in the story by using "you"; third person point of view in which the narrator describes the events from an external point of view and uses "he" and "she" to refer to the actions of characters and third person omniscient called god-like narrator in which the narrator also tells the events from an external point of view but knows the feelings, thoughts, and emotions of all the characters and is able to provide details other narrators cannot.
In the case of the excerpt presented from "A Pair of Silk Stockings" by Kate Chopin the narrator describes the events from an external perspective as in the case of "Little Mrs. Sommers one day found herself the unexpected possessor of fifteen dollars" or the use of the pronoun "he" to describe the man at the end of the excerpt. Additionally, the narrator also knows the feelings and thoughts of the characters as in "It seemed to her a very large amount of money" or " It puzzled him to decipher what he saw there", which implies the type of narrator, in this case, is third-person omniscient as the point of view is external but the narrator knows the thoughts and feelings of the characters, which are the main features of this type of narrator.