...she seemed very surprised to see I was wearing a black tie and she asked me if I was in mourning. I told her
Maman had died. She wanted to know how long ago, so I said, "Yesterday" She gave a little start but I didn't
say anything. I felt like telling her it wasn't my fault, but I stopped myself because I remembered that I'd
already said that to my boss. (The Stranger, Part One, p. 20)
Based on the rest of the story, the underlined sentence in the excerpt above is an example of what literary technique?
foil character
repetition
sensory image
syntax