Read the following context and choose the best option to answer the question.
Context: We get together a couple times a month for lunch , too . Today , we went out to lunch . Today , she kissed me . On the mouth . From shock , I just stood there , frozen like a zombie . She took this as permission or something and kept going . As gently as I could , I pushed her away .
Question: Why did the narrator suddenly freeze up ?
Options: 
A. They were not expecting a girl to be there .
B. They were not expecting a zombie movie to be on .
C. They were not expecting a zombie to show up .
D. They were not expecting an intimate moment .


D