Answer:
A. to develop a contrast between the two sons of Madame Lebrun
Step-by-step explanation:
The given question refers to the novel The Awakening written by Kate Chopin. Madame Lebrun is the woman who owns and manages the cottages on Grand Isle where the characters spend their summer vacations. She has two sons - Victor and Robert.
The given excerpt develops a contrast between Victor and Robert. Robert is described as hospitable and obedient - he himself brought the bouillon to Madame Ratignolle. However, Victor is described as the opposite, as very hot-headed. It's implied that he is not as obedient and decent as his elder brother.
This is why option A is the correct one.