Answer:
Septimus was billeted in Milan when he met Rezia, who made hats with her sisters. Rezia fell in love with Septimus and he thought her pretty, clever, and interesting, but he still could feel nothing. He married her to try and make up for his lack of emotion.
D I think is the answer.
Explanation:
https://www.litcharts.com/lit/mrs-dalloway/section-7
