The correct response is:
by using character actions to create conflict
In this excerpt, Mr. Bingley's amiable and sociable nature contrasts sharply with Mr. Darcy's prideful and withdrawn behavior. This difference in their actions creates tension and conflict, particularly as Mrs. Bennet's resentment towards Mr. Darcy grows because he has slighted one of her daughters. This dynamic helps to advance the plot by establishing the key relationships and conflicts among the characters, setting the stage for future developments in the story.